High-energy Neutrino follow-up search of Gravitational Wave Event GW150914 with ANTARES and IceCube

High-energy Neutrino follow-up search of Gravitational Wave Event
GW150914 with ANTARES and IceCube

ANTARES Collaboration    IceCube Collaboration    LIGO Scientific Collaboration    Virgo Collaboration    S. Adrián-Martínez Institut d’Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC) - Universitat Politècnica de València. C/ Paranimf 1 , 46730 Gandia, Spain.    A. Albert GRPHE - Université de Haute Alsace - Institut universitaire de technologie de Colmar, 34 rue du Grillenbreit BP 50568 - 68008 Colmar, France    M. André Technical University of Catalonia, Laboratory of Applied Bioacoustics, Rambla Exposició,08800 Vilanova i la Geltrú,Barcelona, Spain    G. Anton Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. Ardid Institut d’Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC) - Universitat Politècnica de València. C/ Paranimf 1 , 46730 Gandia, Spain.    J.-J. Aubert Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    T. Avgitas APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    B. Baret APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    J. Barrios-Martí IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain    S. Basa LAM - Laboratoire d’Astrophysique de Marseille, Pôle de l’Étoile Site de Château-Gombert, rue Frédéric Joliot-Curie 38, 13388 Marseille Cedex 13, France    V. Bertin Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    S. Biagi INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    R. Bormuth Nikhef, Science Park, Amsterdam, The Netherlands Huygens-Kamerlingh Onnes Laboratorium, Universiteit Leiden, The Netherlands    M.C. Bouwhuis Nikhef, Science Park, Amsterdam, The Netherlands    R. Bruijn Nikhef, Science Park, Amsterdam, The Netherlands Universiteit van Amsterdam, Instituut voor Hoge-Energie Fysica, Science Park 105, 1098 XG Amsterdam, The Netherlands    J. Brunner Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    J. Busto Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    A. Capone INFN -Sezione di Roma, P.le Aldo Moro 2, 00185 Roma, Italy Dipartimento di Fisica dell’Università La Sapienza, P.le Aldo Moro 2, 00185 Roma, Italy    L. Caramete Institute for Space Science, RO-077125 Bucharest, Măgurele, Romania    J. Carr Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    S. Celli INFN -Sezione di Roma, P.le Aldo Moro 2, 00185 Roma, Italy Dipartimento di Fisica dell’Università La Sapienza, P.le Aldo Moro 2, 00185 Roma, Italy    T. Chiarusi INFN - Sezione di Bologna, Viale Berti-Pichat 6/2, 40127 Bologna, Italy    M. Circella INFN - Sezione di Bari, Via E. Orabona 4, 70126 Bari, Italy    A. Coleiro APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    R. Coniglione INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    H. Costantini Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    P. Coyle Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    A. Creusot APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    A. Deschamps Géoazur, UCA, CNRS, IRD, Observatoire de la Côte d’Azur, Sophia Antipolis, France    G. De Bonis INFN -Sezione di Roma, P.le Aldo Moro 2, 00185 Roma, Italy Dipartimento di Fisica dell’Università La Sapienza, P.le Aldo Moro 2, 00185 Roma, Italy    C. Distefano INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    C. Donzaud APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France Univ. Paris-Sud , 91405 Orsay Cedex, France    D. Dornic Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    D. Drouhin GRPHE - Université de Haute Alsace - Institut universitaire de technologie de Colmar, 34 rue du Grillenbreit BP 50568 - 68008 Colmar, France    T. Eberl Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    I.  El Bojaddaini University Mohammed I, Laboratory of Physics of Matter and Radiations, B.P.717, Oujda 6000, Morocco    D. Elsässer Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Fischer Str. 31, 97074 Würzburg, Germany    A. Enzenhöfer Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    K. Fehn Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    I. Felis Institut d’Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC) - Universitat Politècnica de València. C/ Paranimf 1, 46730 Gandia, Spain.    L.A. Fusco Dipartimento di Fisica e Astronomia dell’Università, Viale Berti Pichat 6/2, 40127 Bologna, Italy INFN - Sezione di Bologna, Viale Berti-Pichat 6/2, 40127 Bologna, Italy    S. Galatà APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    P. Gay Laboratoire de Physique Corpusculaire, Clermont Université, Université Blaise Pascal, CNRS/IN2P3, BP 10448, F-63000 Clermont-Ferrand, France Also at APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    S. Geißelsöder Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    K. Geyer Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    V. Giordano INFN - Sezione di Catania, Viale Andrea Doria 6, 95125 Catania, Italy    A. Gleixner Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    H. Glotin LSIS, Aix Marseille Université CNRS ENSAM LSIS UMR 7296 13397 Marseille, France ; Université de Toulon CNRS LSIS UMR 7296 83957 La Garde, France Institut Universitaire de France, 75005 Paris, France    R. Gracia-Ruiz APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    K. Graf Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    S. Hallmann Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    H. van Haren Royal Netherlands Institute for Sea Research (NIOZ), Landsdiep 4,1797 SZ ’t Horntje (Texel), The Netherlands    A.J. Heijboer Nikhef, Science Park, Amsterdam, The Netherlands    Y. Hello Géoazur, UCA, CNRS, IRD, Observatoire de la Côte d’Azur, Sophia Antipolis, France    J.J.  Hernández-Rey IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain    J. Hößl Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    J. Hofestädt Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    C. Hugon INFN - Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy Dipartimento di Fisica dell’Università, Via Dodecaneso 33, 16146 Genova, Italy    G. Illuminati INFN -Sezione di Roma, P.le Aldo Moro 2, 00185 Roma, Italy Dipartimento di Fisica dell’Università La Sapienza, P.le Aldo Moro 2, 00185 Roma, Italy    C.W James Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. de Jong Nikhef, Science Park, Amsterdam, The Netherlands Huygens-Kamerlingh Onnes Laboratorium, Universiteit Leiden, The Netherlands    M. Jongen Nikhef, Science Park, Amsterdam, The Netherlands    M. Kadler Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Fischer Str. 31, 97074 Würzburg, Germany    O. Kalekin Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    U. Katz Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    D. Kießling Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    A. Kouchner APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France Institut Universitaire de France, 75005 Paris, France    M. Kreter Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Fischer Str. 31, 97074 Würzburg, Germany    I. Kreykenbohm Dr. Remeis-Sternwarte and ECAP, Universität Erlangen-Nürnberg, Sternwartstr. 7, 96049 Bamberg, Germany    V. Kulikovskiy INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy Moscow State University,Skobeltsyn Institute of Nuclear Physics,Leninskie gory, 119991 Moscow, Russia    C. Lachaud APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    R. Lahmann Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    D.  Lefèvre Mediterranean Institute of Oceanography (MIO), Aix-Marseille University, 13288, Marseille, Cedex 9, France; Université du Sud Toulon-Var, 83957, La Garde Cedex, France CNRS-INSU/IRD UM 110    E. Leonora INFN - Sezione di Catania, Viale Andrea Doria 6, 95125 Catania, Italy Dipartimento di Fisica ed Astronomia dell’Università, Viale Andrea Doria 6, 95125 Catania, Italy    S. Loucatos Direction des Sciences de la Matière - Institut de recherche sur les lois fondamentales de l’Univers - Service de Physique des Particules, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    M. Marcelin LAM - Laboratoire d’Astrophysique de Marseille, Pôle de l’Étoile Site de Château-Gombert, rue Frédéric Joliot-Curie 38, 13388 Marseille Cedex 13, France    A. Margiotta Dipartimento di Fisica e Astronomia dell’Università, Viale Berti Pichat 6/2, 40127 Bologna, Italy INFN - Sezione di Bologna, Viale Berti-Pichat 6/2, 40127 Bologna, Italy    A. Marinelli INFN - Sezione di Pisa, Largo B. Pontecorvo 3, 56127 Pisa, Italy Dipartimento di Fisica dell’Università, Largo B. Pontecorvo 3, 56127 Pisa, Italy    J.A. Martínez-Mora Institut d’Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC) - Universitat Politècnica de València. C/ Paranimf 1 , 46730 Gandia, Spain.    A. Mathieu Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    K. Melis Universiteit van Amsterdam, Instituut voor Hoge-Energie Fysica, Science Park 105, 1098 XG Amsterdam, The Netherlands    T. Michael Nikhef, Science Park, Amsterdam, The Netherlands    P. Migliozzi INFN -Sezione di Napoli, Via Cintia 80126 Napoli, Italy    A. Moussa University Mohammed I, Laboratory of Physics of Matter and Radiations, B.P.717, Oujda 6000, Morocco    C. Mueller Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Fischer Str. 31, 97074 Würzburg, Germany    E. Nezri LAM - Laboratoire d’Astrophysique de Marseille, Pôle de l’Étoile Site de Château-Gombert, rue Frédéric Joliot-Curie 38, 13388 Marseille Cedex 13, France    G.E. Păvălaş Institute for Space Science, RO-077125 Bucharest, Măgurele, Romania    C. Pellegrino Dipartimento di Fisica e Astronomia dell’Università, Viale Berti Pichat 6/2, 40127 Bologna, Italy INFN - Sezione di Bologna, Viale Berti-Pichat 6/2, 40127 Bologna, Italy    C. Perrina INFN -Sezione di Roma, P.le Aldo Moro 2, 00185 Roma, Italy Dipartimento di Fisica dell’Università La Sapienza, P.le Aldo Moro 2, 00185 Roma, Italy    P. Piattelli INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    V. Popa Institute for Space Science, RO-077125 Bucharest, Măgurele, Romania    T. Pradier Université de Strasbourg, IPHC, 23 rue du Loess 67037 Strasbourg, France - CNRS, UMR7178, 67037 Strasbourg, France    C. Racca GRPHE - Université de Haute Alsace - Institut universitaire de technologie de Colmar, 34 rue du Grillenbreit BP 50568 - 68008 Colmar, France    G. Riccobene INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    K. Roensch Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. Saldaña Institut d’Investigació per a la Gestió Integrada de les Zones Costaneres (IGIC) - Universitat Politècnica de València. C/ Paranimf 1 , 46730 Gandia, Spain.    D. F. E. Samtleben Nikhef, Science Park, Amsterdam, The Netherlands Huygens-Kamerlingh Onnes Laboratorium, Universiteit Leiden, The Netherlands    M. Sanguineti INFN - Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy Dipartimento di Fisica dell’Università, Via Dodecaneso 33, 16146 Genova, Italy    P. Sapienza INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    J. Schnabel Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    F. Schüssler Direction des Sciences de la Matière - Institut de recherche sur les lois fondamentales de l’Univers - Service de Physique des Particules, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France    T. Seitz Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    C. Sieger Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. Spurio Dipartimento di Fisica e Astronomia dell’Università, Viale Berti Pichat 6/2, 40127 Bologna, Italy INFN - Sezione di Bologna, Viale Berti-Pichat 6/2, 40127 Bologna, Italy    Th. Stolarczyk Direction des Sciences de la Matière - Institut de recherche sur les lois fondamentales de l’Univers - Service de Physique des Particules, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France    A. Sánchez-Losa IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain now at INFN - Sezione di Bari, Via E. Orabona 4, 70126 Bari, Italy    M. Taiuti INFN - Sezione di Genova, Via Dodecaneso 33, 16146 Genova, Italy Dipartimento di Fisica dell’Università, Via Dodecaneso 33, 16146 Genova, Italy    A. Trovato INFN - Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy    M. Tselengidou Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    D. Turpin Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    C. Tönnis IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain    B. Vallage Direction des Sciences de la Matière - Institut de recherche sur les lois fondamentales de l’Univers - Service de Physique des Particules, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France Also at APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    C. Vallée Aix-Marseille Université, CNRS/IN2P3, CPPM UMR 7346, 13288 Marseille, France    V. Van Elewyck APC, Université Paris Diderot, CNRS/IN2P3, CEA/IRFU, Observatoire de Paris, Sorbonne Paris Cité, 75205 Paris, France    D. Vivolo INFN -Sezione di Napoli, Via Cintia 80126 Napoli, Italy Dipartimento di Fisica dell’Università Federico II di Napoli, Via Cintia 80126, Napoli, Italy    S. Wagner Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    J. Wilms Dr. Remeis-Sternwarte and ECAP, Universität Erlangen-Nürnberg, Sternwartstr. 7, 96049 Bamberg, Germany    J.D. Zornoza IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain    J. Zúñiga IFIC - Instituto de Física Corpuscular c/ Catedraático José Beltrán, 2 E-46980 Paterna, Valencia, Spain III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany University of Adelaide, Adelaide, South Australia 5005, Australia Dept. of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, AK 99508, USA CTSPS, Clark-Atlanta University, Atlanta, GA 30314, USA School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USA Dept. of Physics, Southern University, Baton Rouge, LA 70813, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium Dept. of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA Dept. of Physics, Chiba University, Chiba 263-8522, Japan Dept. of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand Dept. of Physics, University of Maryland, College Park, MD 20742, USA Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA Dept. of Astronomy, Ohio State University, Columbus, OH 43210, USA Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1 Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium Dept. of Physics and Astronomy, University of California, Irvine, CA 92697, USA Dept. of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA Dept. of Astronomy, University of Wisconsin, Madison, WI 53706, USA Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany Université de Mons, 7000 Mons, Belgium Technische Universität München, D-85748 Garching, Germany Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA Dept. of Physics, Yale University, New Haven, CT 06520, USA Dept. of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, UK Dept. of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA Dept. of Physics, University of Wisconsin, River Falls, WI 54022, USA Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea Dept. of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7 Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA Dept. of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802, USA Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA Dept. of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany DESY, D-15735 Zeuthen, Germany    M. G. Aartsen University of Adelaide, Adelaide, South Australia 5005, Australia    K. Abraham Technische Universität München, D-85748 Garching, Germany    M. Ackermann DESY, D-15735 Zeuthen, Germany    J. Adams Dept. of Physics and Astronomy, University of Canterbury, Private Bag 4800, Christchurch, New Zealand    J. A. Aguilar Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    M. Ahlers Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    M. Ahrens Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    D. Altmann Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    T. Anderson Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    I. Ansseau Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    G. Anton Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. Archinger Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    C. Arguelles Dept. of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. C. Arlen Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    J. Auffenberg III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    X. Bai Physics Department, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA    S. W. Barwick Dept. of Physics and Astronomy, University of California, Irvine, CA 92697, USA    V. Baum Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    R. Bay Dept. of Physics, University of California, Berkeley, CA 94720, USA    J. J. Beatty Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA Dept. of Astronomy, Ohio State University, Columbus, OH 43210, USA    J. Becker Tjus Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    K.-H. Becker Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    E. Beiser Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    S. BenZvi Dept. of Physics and Astronomy, University of Rochester, Rochester, NY 14627, USA    P. Berghaus DESY, D-15735 Zeuthen, Germany    D. Berley Dept. of Physics, University of Maryland, College Park, MD 20742, USA    E. Bernardini DESY, D-15735 Zeuthen, Germany    A. Bernhard Technische Universität München, D-85748 Garching, Germany    D. Z. Besson Dept. of Physics and Astronomy, University of Kansas, Lawrence, KS 66045, USA    G. Binder Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    D. Bindig Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    M. Bissok III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    E. Blaufuss Dept. of Physics, University of Maryland, College Park, MD 20742, USA    J. Blumenthal III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    D. J. Boersma Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    C. Bohm Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    M. Börner Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    F. Bos Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    D. Bose Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    S. Böser Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    O. Botner Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    J. Braun Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    L. Brayeur Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    H.-P. Bretz DESY, D-15735 Zeuthen, Germany    N. Buzinsky Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    J. Casey School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USA    M. Casier Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    E. Cheung Dept. of Physics, University of Maryland, College Park, MD 20742, USA    D. Chirkin Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    A. Christov Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland    K. Clark Dept. of Physics, University of Toronto, Toronto, Ontario, Canada, M5S 1A7    L. Classen Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    S. Coenders Technische Universität München, D-85748 Garching, Germany    G. H. Collin Dept. of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    J. M. Conrad Dept. of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    D. F. Cowen Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA Dept. of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802, USA    A. H. Cruz Silva DESY, D-15735 Zeuthen, Germany    J. Daughhetee School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USA    J. C. Davis Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA    M. Day Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    J. P. A. M. de André Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    C. De Clercq Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    E. del Pino Rosendo Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    H. Dembinski Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    S. De Ridder Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    P. Desiati Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    K. D. de Vries Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    G. de Wasseige Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    M. de With Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany    T. DeYoung Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    J. C. Díaz-Vélez Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    V. di Lorenzo Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    H. Dujmovic Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    J. P. Dumm Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    M. Dunkman Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    B. Eberhardt Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    T. Ehrhardt Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    B. Eichmann Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    S. Euler Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    P. A. Evenson Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    S. Fahey Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    A. R. Fazely Dept. of Physics, Southern University, Baton Rouge, LA 70813, USA    J. Feintzeig Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    J. Felde Dept. of Physics, University of Maryland, College Park, MD 20742, USA    K. Filimonov Dept. of Physics, University of California, Berkeley, CA 94720, USA    C. Finley Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    S. Flis Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    C.-C. Fösig Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    T. Fuchs Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    T. K. Gaisser Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    R. Gaior Dept. of Physics, Chiba University, Chiba 263-8522, Japan    J. Gallagher Dept. of Astronomy, University of Wisconsin, Madison, WI 53706, USA    L. Gerhardt Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    K. Ghorbani Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    D. Gier III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    L. Gladstone Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    M. Glagla III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    T. Glüsenkamp DESY, D-15735 Zeuthen, Germany    A. Goldschmidt Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    G. Golup Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    J. G. Gonzalez Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    D. Góra DESY, D-15735 Zeuthen, Germany    D. Grant Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    Z. Griffith Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    C. Ha Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    C. Haack III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    A. Haj Ismail Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    A. Hallgren Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    F. Halzen Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    E. Hansen Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark    B. Hansmann III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    T. Hansmann III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    K. Hanson Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    D. Hebecker Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany    D. Heereman Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    K. Helbing Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    R. Hellauer Dept. of Physics, University of Maryland, College Park, MD 20742, USA    S. Hickford Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    J. Hignight Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    G. C. Hill University of Adelaide, Adelaide, South Australia 5005, Australia    K. D. Hoffman Dept. of Physics, University of Maryland, College Park, MD 20742, USA    R. Hoffmann Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    K. Holzapfel Technische Universität München, D-85748 Garching, Germany    A. Homeier Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany    K. Hoshina Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    F. Huang Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    M. Huber Technische Universität München, D-85748 Garching, Germany    W. Huelsnitz Dept. of Physics, University of Maryland, College Park, MD 20742, USA    P. O. Hulth Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    K. Hultqvist Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    S. In Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    A. Ishihara Dept. of Physics, Chiba University, Chiba 263-8522, Japan    E. Jacobi DESY, D-15735 Zeuthen, Germany    G. S. Japaridze CTSPS, Clark-Atlanta University, Atlanta, GA 30314, USA    M. Jeong Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    K. Jero Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    B. J. P. Jones Dept. of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Jurkovic Technische Universität München, D-85748 Garching, Germany    A. Kappes Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    T. Karg DESY, D-15735 Zeuthen, Germany    A. Karle Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    U. Katz Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    M. Kauer Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA Dept. of Physics, Yale University, New Haven, CT 06520, USA    A. Keivani Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    J. L. Kelley Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    J. Kemp III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    A. Kheirandish Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    M. Kim Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    T. Kintscher DESY, D-15735 Zeuthen, Germany    J. Kiryluk Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA    S. R. Klein Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    G. Kohnen Université de Mons, 7000 Mons, Belgium    R. Koirala Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    H. Kolanoski Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany    R. Konietz III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    L. Köpke Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    C. Kopper Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    S. Kopper Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    D. J. Koskinen Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark    M. Kowalski Institut für Physik, Humboldt-Universität zu Berlin, D-12489 Berlin, Germany DESY, D-15735 Zeuthen, Germany    K. Krings Technische Universität München, D-85748 Garching, Germany    G. Kroll Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    M. Kroll Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    G. Krückl Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    J. Kunnen Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    S. Kunwar DESY, D-15735 Zeuthen, Germany    N. Kurahashi Dept. of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA    T. Kuwabara Dept. of Physics, Chiba University, Chiba 263-8522, Japan    M. Labare Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    J. L. Lanfranchi Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    M. J. Larson Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark    D. Lennarz Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    M. Lesiak-Bzdak Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA    M. Leuermann III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    J. Leuner III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    L. Lu Dept. of Physics, Chiba University, Chiba 263-8522, Japan    J. Lünemann Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    J. Madsen Dept. of Physics, University of Wisconsin, River Falls, WI 54022, USA    G. Maggi Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    K. B. M. Mahn Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    M. Mandelartz Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    R. Maruyama Dept. of Physics, Yale University, New Haven, CT 06520, USA    K. Mase Dept. of Physics, Chiba University, Chiba 263-8522, Japan    H. S. Matis Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    R. Maunu Dept. of Physics, University of Maryland, College Park, MD 20742, USA    F. McNally Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    K. Meagher Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    M. Medici Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark    M. Meier Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    A. Meli Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    T. Menne Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    G. Merino Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    T. Meures Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    S. Miarecki Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    E. Middell DESY, D-15735 Zeuthen, Germany    L. Mohrmann DESY, D-15735 Zeuthen, Germany    T. Montaruli Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland    R. Morse Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    R. Nahnhauer DESY, D-15735 Zeuthen, Germany    U. Naumann Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    G. Neer Dept. of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA    H. Niederhausen Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA    S. C. Nowicki Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    D. R. Nygren Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    A. Obertacke Pollmann Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    A. Olivas Dept. of Physics, University of Maryland, College Park, MD 20742, USA    A. Omairat Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    A. O’Murchadha Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    T. Palczewski Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA    H. Pandya Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    D. V. Pankova Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    L. Paul III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    J. A. Pepper Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA    C. Pérez de los Heros Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    C. Pfendner Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA    D. Pieloth Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    E. Pinat Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    J. Posselt Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    P. B. Price Dept. of Physics, University of California, Berkeley, CA 94720, USA    G. T. Przybylski Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    M. Quinnan Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    C. Raab Université Libre de Bruxelles, Science Faculty CP230, B-1050 Brussels, Belgium    L. Rädel III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    M. Rameez Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland    K. Rawlins Dept. of Physics and Astronomy, University of Alaska Anchorage, 3211 Providence Dr., Anchorage, AK 99508, USA    R. Reimann III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    M. Relich Dept. of Physics, Chiba University, Chiba 263-8522, Japan    E. Resconi Technische Universität München, D-85748 Garching, Germany    W. Rhode Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    M. Richman Dept. of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA    S. Richter Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    B. Riedel Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    S. Robertson University of Adelaide, Adelaide, South Australia 5005, Australia    M. Rongen III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    C. Rott Dept. of Physics, Sungkyunkwan University, Suwon 440-746, Korea    T. Ruhe Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    D. Ryckbosch Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    L. Sabbatini Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    H.-G. Sander Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    A. Sandrock Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    J. Sandroos Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    S. Sarkar Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark Dept. of Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, UK    K. Schatto Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    M. Schimp III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    P. Schlunder Dept. of Physics, TU Dortmund University, D-44221 Dortmund, Germany    T. Schmidt Dept. of Physics, University of Maryland, College Park, MD 20742, USA    S. Schoenen III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    S. Schöneberg Fakultät für Physik & Astronomie, Ruhr-Universität Bochum, D-44780 Bochum, Germany    A. Schönwald DESY, D-15735 Zeuthen, Germany    L. Schumacher III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    D. Seckel Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    S. Seunarine Dept. of Physics, University of Wisconsin, River Falls, WI 54022, USA    D. Soldin Dept. of Physics, University of Wuppertal, D-42119 Wuppertal, Germany    M. Song Dept. of Physics, University of Maryland, College Park, MD 20742, USA    G. M. Spiczak Dept. of Physics, University of Wisconsin, River Falls, WI 54022, USA    C. Spiering DESY, D-15735 Zeuthen, Germany    M. Stahlberg III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    M. Stamatikos Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA    T. Stanev Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    A. Stasik DESY, D-15735 Zeuthen, Germany    A. Steuer Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    T. Stezelberger Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    R. G. Stokstad Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA    A. Stößl DESY, D-15735 Zeuthen, Germany    R. Ström Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    N. L. Strotjohann DESY, D-15735 Zeuthen, Germany    G. W. Sullivan Dept. of Physics, University of Maryland, College Park, MD 20742, USA    M. Sutherland Dept. of Physics and Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210, USA    H. Taavola Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    I. Taboada School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA 30332, USA    J. Tatar Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Dept. of Physics, University of California, Berkeley, CA 94720, USA    S. Ter-Antonyan Dept. of Physics, Southern University, Baton Rouge, LA 70813, USA    A. Terliuk DESY, D-15735 Zeuthen, Germany    G. Tešić Dept. of Physics, Pennsylvania State University, University Park, PA 16802, USA    S. Tilav Bartol Research Institute and Dept. of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA    P. A. Toale Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA    M. N. Tobin Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    S. Toscano Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    D. Tosi Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    M. Tselengidou Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany    A. Turcati Technische Universität München, D-85748 Garching, Germany    E. Unger Dept. of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden    M. Usner DESY, D-15735 Zeuthen, Germany    S. Vallecorsa Département de physique nucléaire et corpusculaire, Université de Genève, CH-1211 Genève, Switzerland    J. Vandenbroucke Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    N. van Eijndhoven Vrije Universiteit Brussel, Dienst ELEM, B-1050 Brussels, Belgium    S. Vanheule Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    J. van Santen DESY, D-15735 Zeuthen, Germany    J. Veenkamp Technische Universität München, D-85748 Garching, Germany    M. Vehring III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    M. Voge Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany    M. Vraeghe Dept. of Physics and Astronomy, University of Gent, B-9000 Gent, Belgium    C. Walck Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    A. Wallace University of Adelaide, Adelaide, South Australia 5005, Australia    M. Wallraff III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    N. Wandkowsky Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    Ch. Weaver Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    C. Wendt Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    S. Westerhoff Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    B. J. Whelan University of Adelaide, Adelaide, South Australia 5005, Australia    K. Wiebe Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany    C. H. Wiebusch III. Physikalisches Institut, RWTH Aachen University, D-52056 Aachen, Germany    L. Wille Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    D. R. Williams Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA    L. Wills Dept. of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA    H. Wissing Dept. of Physics, University of Maryland, College Park, MD 20742, USA    M. Wolf Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    T. R. Wood Dept. of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2E1    K. Woschnagg Dept. of Physics, University of California, Berkeley, CA 94720, USA    D. L. Xu Dept. of Physics and Wisconsin IceCube Particle Astrophysics Center, University of Wisconsin, Madison, WI 53706, USA    X. W. Xu Dept. of Physics, Southern University, Baton Rouge, LA 70813, USA    Y. Xu Dept. of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794-3800, USA    J. P. Yanez DESY, D-15735 Zeuthen, Germany    G. Yodh Dept. of Physics and Astronomy, University of California, Irvine, CA 92697, USA    S. Yoshida Dept. of Physics, Chiba University, Chiba 263-8522, Japan    M. Zoll Oskar Klein Centre and Dept. of Physics, Stockholm University, SE-10691 Stockholm, Sweden    B. P. Abbott LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Abbott LIGO, California Institute of Technology, Pasadena, CA 91125, USA    T. D. Abbott Louisiana State University, Baton Rouge, LA 70803, USA    M. R. Abernathy LIGO, California Institute of Technology, Pasadena, CA 91125, USA    F. Acernese Università di Salerno, Fisciano, I-84084 Salerno, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    K. Ackley University of Florida, Gainesville, FL 32611, USA    C. Adams LIGO Livingston Observatory, Livingston, LA 70754, USA    T. Adams Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    P. Addesso Università di Salerno, Fisciano, I-84084 Salerno, Italy    R. X. Adhikari LIGO, California Institute of Technology, Pasadena, CA 91125, USA    V. B. Adya Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    C. Affeldt Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. Agathos Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    K. Agatsuma Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    N. Aggarwal LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    O. D. Aguiar Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil    L. Aiello INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    A. Ain Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    P. Ajith International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India    B. Allen Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA Leibniz Universität Hannover, D-30167 Hannover, Germany    A. Allocca Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    P. A. Altin Australian National University, Canberra, Australian Capital Territory 0200, Australia    S. B. Anderson LIGO, California Institute of Technology, Pasadena, CA 91125, USA    W. G. Anderson University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    K. Arai LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. C. Araya LIGO, California Institute of Technology, Pasadena, CA 91125, USA    C. C. Arceneaux The University of Mississippi, University, MS 38677, USA    J. S. Areeda California State University Fullerton, Fullerton, CA 92831, USA    N. Arnaud LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    K. G. Arun Chennai Mathematical Institute, Chennai 603103, India    S. Ascenzi Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    G. Ashton University of Southampton, Southampton SO17 1BJ, United Kingdom    M. Ast Universität Hamburg, D-22761 Hamburg, Germany    S. M. Aston LIGO Livingston Observatory, Livingston, LA 70754, USA    P. Astone INFN, Sezione di Roma, I-00185 Roma, Italy    P. Aufmuth Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    C. Aulbert Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    S. Babak Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    P. Bacon APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    M. K. M. Bader Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    P. T. Baker Montana State University, Bozeman, MT 59717, USA    F. Baldaccini Università di Perugia, I-06123 Perugia, Italy INFN, Sezione di Perugia, I-06123 Perugia, Italy    G. Ballardin European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    S. W. Ballmer Syracuse University, Syracuse, NY 13244, USA    J. C. Barayoga LIGO, California Institute of Technology, Pasadena, CA 91125, USA    S. E. Barclay SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    B. C. Barish LIGO, California Institute of Technology, Pasadena, CA 91125, USA    D. Barker LIGO Hanford Observatory, Richland, WA 99352, USA    F. Barone Università di Salerno, Fisciano, I-84084 Salerno, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    B. Barr SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    L. Barsotti LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Barsuglia APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    D. Barta Wigner RCP, RMKI, H-1121 Budapest, Konkoly Thege Miklós út 29-33, Hungary    J. Bartlett LIGO Hanford Observatory, Richland, WA 99352, USA    I. Bartos Columbia University, New York, NY 10027, USA    R. Bassiri Stanford University, Stanford, CA 94305, USA    A. Basti Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    J. C. Batch LIGO Hanford Observatory, Richland, WA 99352, USA    C. Baune Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    V. Bavigadda European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. Bazzan Università di Padova, Dipartimento di Fisica e Astronomia, I-35131 Padova, Italy INFN, Sezione di Padova, I-35131 Padova, Italy    B. Behnke Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    M. Bejger CAMK-PAN, 00-716 Warsaw, Poland    A. S. Bell SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    C. J. Bell SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    B. K. Berger LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. Bergman LIGO Hanford Observatory, Richland, WA 99352, USA    G. Bergmann Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    C. P. L. Berry University of Birmingham, Birmingham B15 2TT, United Kingdom    D. Bersanetti Università degli Studi di Genova, I-16146 Genova, Italy INFN, Sezione di Genova, I-16146 Genova, Italy    A. Bertolini Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    J. Betzwieser LIGO Livingston Observatory, Livingston, LA 70754, USA    S. Bhagwat Syracuse University, Syracuse, NY 13244, USA    R. Bhandare RRCAT, Indore MP 452013, India    I. A. Bilenko Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    G. Billingsley LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. Birch LIGO Livingston Observatory, Livingston, LA 70754, USA    R. Birney SUPA, University of the West of Scotland, Paisley PA1 2BE, United Kingdom    S. Biscans LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    A. Bisht Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    M. Bitossi European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    C. Biwer Syracuse University, Syracuse, NY 13244, USA    M. A. Bizouard LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    J. K. Blackburn LIGO, California Institute of Technology, Pasadena, CA 91125, USA    C. D. Blair University of Western Australia, Crawley, Western Australia 6009, Australia    D. G. Blair University of Western Australia, Crawley, Western Australia 6009, Australia    R. M. Blair LIGO Hanford Observatory, Richland, WA 99352, USA    S. Bloemen Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands    O. Bock Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    T. P. Bodiya LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Boer Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    G. Bogaert Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    C. Bogan Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. Bohe Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    P. Bojtos MTA Eötvös University, “Lendulet” Astrophysics Research Group, Budapest 1117, Hungary    C. Bond University of Birmingham, Birmingham B15 2TT, United Kingdom    F. Bondu Institut de Physique de Rennes, CNRS, Université de Rennes 1, F-35042 Rennes, France    R. Bonnand Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    B. A. Boom Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    R. Bork LIGO, California Institute of Technology, Pasadena, CA 91125, USA    V. Boschi Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    S. Bose Washington State University, Pullman, WA 99164, USA Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    Y. Bouffanais APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    A. Bozzi European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    C. Bradaschia INFN, Sezione di Pisa, I-56127 Pisa, Italy    P. R. Brady University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    V. B. Braginsky Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    M. Branchesi Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    J. E. Brau University of Oregon, Eugene, OR 97403, USA    T. Briant Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    A. Brillet Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    M. Brinkmann Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    V. Brisson LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    P. Brockill University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    A. F. Brooks LIGO, California Institute of Technology, Pasadena, CA 91125, USA    D. D. Brown University of Birmingham, Birmingham B15 2TT, United Kingdom    N. M. Brown LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    C. C. Buchanan Louisiana State University, Baton Rouge, LA 70803, USA    A. Buikema LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. Bulik Astronomical Observatory Warsaw University, 00-478 Warsaw, Poland    H. J. Bulten VU University Amsterdam, 1081 HV Amsterdam, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    A. Buonanno Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany University of Maryland, College Park, MD 20742, USA    D. Buskulic Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    C. Buy APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    R. L. Byer Stanford University, Stanford, CA 94305, USA    L. Cadonati Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    G. Cagnoli Institut Lumière Matière, Université de Lyon, Université Claude Bernard Lyon 1, UMR CNRS 5306, 69622 Villeurbanne, France Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    C. Cahillane LIGO, California Institute of Technology, Pasadena, CA 91125, USA    T. Callister LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. Calloni Università di Napoli “Federico II,” Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    J. B. Camp NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA    K. C. Cannon Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario M5S 3H8, Canada    J. Cao Tsinghua University, Beijing 100084, China    C. D. Capano Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    E. Capocasa APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    F. Carbognani European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    S. Caride Texas Tech University, Lubbock, TX 79409, USA    J. Casanueva Diaz LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    C. Casentini Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    S. Caudill University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    F. Cavalier LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    R. Cavalieri European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    G. Cella INFN, Sezione di Pisa, I-56127 Pisa, Italy    C. B. Cepeda LIGO, California Institute of Technology, Pasadena, CA 91125, USA    L. Cerboni Baiardi Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    G. Cerretani Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    E. Cesarini Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    R. Chakraborty LIGO, California Institute of Technology, Pasadena, CA 91125, USA    T. Chalermsongsak LIGO, California Institute of Technology, Pasadena, CA 91125, USA    S. J. Chamberlin The Pennsylvania State University, University Park, PA 16802, USA    M. Chan SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. Chao National Tsing Hua University, Hsinchu City, 30013 Taiwan, Republic of China    P. Charlton Charles Sturt University, Wagga Wagga, New South Wales 2678, Australia    E. Chassande-Mottin APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    H. Y. Chen University of Chicago, Chicago, IL 60637, USA    Y. Chen Caltech CaRT, Pasadena, CA 91125, USA    C. Cheng National Tsing Hua University, Hsinchu City, 30013 Taiwan, Republic of China    A. Chincarini INFN, Sezione di Genova, I-16146 Genova, Italy    A. Chiummo European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    H. S. Cho Korea Institute of Science and Technology Information, Daejeon 305-806, Korea    M. Cho University of Maryland, College Park, MD 20742, USA    J. H. Chow Australian National University, Canberra, Australian Capital Territory 0200, Australia    N. Christensen Carleton College, Northfield, MN 55057, USA    Q. Chu University of Western Australia, Crawley, Western Australia 6009, Australia    S. Chua Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    S. Chung University of Western Australia, Crawley, Western Australia 6009, Australia    G. Ciani University of Florida, Gainesville, FL 32611, USA    F. Clara LIGO Hanford Observatory, Richland, WA 99352, USA    J. A. Clark Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    F. Cleva Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    E. Coccia Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    P.-F. Cohadon Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    A. Colla Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    C. G. Collette University of Brussels, Brussels 1050, Belgium    L. Cominsky Sonoma State University, Rohnert Park, CA 94928, USA    M. Constancio Jr. Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil    A. Conte Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    L. Conti INFN, Sezione di Padova, I-35131 Padova, Italy    D. Cook LIGO Hanford Observatory, Richland, WA 99352, USA    T. R. Corbitt Louisiana State University, Baton Rouge, LA 70803, USA    N. Cornish Montana State University, Bozeman, MT 59717, USA    A. Corsi Texas Tech University, Lubbock, TX 79409, USA    S. Cortese European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    C. A. Costa Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil    M. W. Coughlin Carleton College, Northfield, MN 55057, USA    S. B. Coughlin Northwestern University, Evanston, IL 60208, USA    J.-P. Coulon Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    S. T. Countryman Columbia University, New York, NY 10027, USA    P. Couvares LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. E. Cowan Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    D. M. Coward University of Western Australia, Crawley, Western Australia 6009, Australia    M. J. Cowart LIGO Livingston Observatory, Livingston, LA 70754, USA    D. C. Coyne LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Coyne Texas Tech University, Lubbock, TX 79409, USA    K. Craig SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J. D. E. Creighton University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    J. Cripe Louisiana State University, Baton Rouge, LA 70803, USA    S. G. Crowder University of Minnesota, Minneapolis, MN 55455, USA    A. Cumming SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    L. Cunningham SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. Cuoco European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    T. Dal Canton Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    S. L. Danilishin SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. D’Antonio INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    K. Danzmann Leibniz Universität Hannover, D-30167 Hannover, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    N. S. Darman The University of Melbourne, Parkville, Victoria 3010, Australia    V. Dattilo European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    I. Dave RRCAT, Indore MP 452013, India    H. P. Daveloza The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    M. Davier LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    G. S. Davies SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. J. Daw The University of Sheffield, Sheffield S10 2TN, United Kingdom    R. Day European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    D. DeBra Stanford University, Stanford, CA 94305, USA    G. Debreczeni Wigner RCP, RMKI, H-1121 Budapest, Konkoly Thege Miklós út 29-33, Hungary    J. Degallaix Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    M. De Laurentis Università di Napoli “Federico II,” Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    W. Del Pozzo University of Birmingham, Birmingham B15 2TT, United Kingdom    T. Denker Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    H. Dereli Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    V. Dergachev LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. T. DeRosa LIGO Livingston Observatory, Livingston, LA 70754, USA    R. De Rosa Università di Napoli “Federico II,” Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    R. DeSalvo University of Sannio at Benevento, I-82100 Benevento, Italy and INFN, Sezione di Napoli, I-80100 Napoli, Italy    S. Dhurandhar Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    L. Di Fiore INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    M. Di Giovanni Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    A. Di Lieto Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    S. Di Pace Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    I. Di Palma Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. Di Virgilio INFN, Sezione di Pisa, I-56127 Pisa, Italy    G. Dojcinoski Montclair State University, Montclair, NJ 07043, USA    V. Dolique Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    F. Donovan LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    K. L. Dooley The University of Mississippi, University, MS 38677, USA    S. Doravari LIGO Livingston Observatory, Livingston, LA 70754, USA Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    R. Douglas SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    T. P. Downes University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    M. Drago Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Università di Trento, Dipartimento di Fisica, I-38123 Povo, Trento, Italy INFN, Trento Institute for Fundamental Physics and Applications, I-38123 Povo, Trento, Italy    R. W. P. Drever LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. C. Driggers LIGO Hanford Observatory, Richland, WA 99352, USA    Z. Du Tsinghua University, Beijing 100084, China    M. Ducrot Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    S. E. Dwyer LIGO Hanford Observatory, Richland, WA 99352, USA    T. B. Edo The University of Sheffield, Sheffield S10 2TN, United Kingdom    M. C. Edwards Carleton College, Northfield, MN 55057, USA    A. Effler LIGO Livingston Observatory, Livingston, LA 70754, USA    H.-B. Eggenstein Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    P. Ehrens LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. Eichholz University of Florida, Gainesville, FL 32611, USA    S. S. Eikenberry University of Florida, Gainesville, FL 32611, USA    W. Engels Caltech CaRT, Pasadena, CA 91125, USA    R. C. Essick LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. Etzel LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Evans LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. M. Evans LIGO Livingston Observatory, Livingston, LA 70754, USA    R. Everett The Pennsylvania State University, University Park, PA 16802, USA    M. Factourovich Columbia University, New York, NY 10027, USA    V. Fafone Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy    H. Fair Syracuse University, Syracuse, NY 13244, USA    S. Fairhurst Cardiff University, Cardiff CF24 3AA, United Kingdom    X. Fan Tsinghua University, Beijing 100084, China    Q. Fang University of Western Australia, Crawley, Western Australia 6009, Australia    S. Farinon INFN, Sezione di Genova, I-16146 Genova, Italy    B. Farr University of Chicago, Chicago, IL 60637, USA    W. M. Farr University of Birmingham, Birmingham B15 2TT, United Kingdom    M. Favata Montclair State University, Montclair, NJ 07043, USA    M. Fays Cardiff University, Cardiff CF24 3AA, United Kingdom    H. Fehrmann Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. M. Fejer Stanford University, Stanford, CA 94305, USA    I. Ferrante Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    E. C. Ferreira Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil    F. Ferrini European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    F. Fidecaro Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    I. Fiori European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    D. Fiorucci APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    R. P. Fisher Syracuse University, Syracuse, NY 13244, USA    R. Flaminio Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan    M. Fletcher SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J.-D. Fournier Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    S. Franco LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    S. Frasca Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    F. Frasconi INFN, Sezione di Pisa, I-56127 Pisa, Italy    Z. Frei MTA Eötvös University, “Lendulet” Astrophysics Research Group, Budapest 1117, Hungary    A. Freise University of Birmingham, Birmingham B15 2TT, United Kingdom    R. Frey University of Oregon, Eugene, OR 97403, USA    V. Frey LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    T. T. Fricke Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    P. Fritschel LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    V. V. Frolov LIGO Livingston Observatory, Livingston, LA 70754, USA    P. Fulda University of Florida, Gainesville, FL 32611, USA    M. Fyffe LIGO Livingston Observatory, Livingston, LA 70754, USA    H. A. G. Gabbard The University of Mississippi, University, MS 38677, USA    J. R. Gair School of Mathematics, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom    L. Gammaitoni Università di Perugia, I-06123 Perugia, Italy INFN, Sezione di Perugia, I-06123 Perugia, Italy    S. G. Gaonkar Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    F. Garufi Università di Napoli “Federico II,” Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    A. Gatto APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    G. Gaur Indian Institute of Technology, Gandhinagar Ahmedabad Gujarat 382424, India Institute for Plasma Research, Bhat, Gandhinagar 382428, India    N. Gehrels NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA    G. Gemme INFN, Sezione di Genova, I-16146 Genova, Italy    B. Gendre Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    E. Genin European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    A. Gennai INFN, Sezione di Pisa, I-56127 Pisa, Italy    J. George RRCAT, Indore MP 452013, India    L. Gergely University of Szeged, Dóm tér 9, Szeged 6720, Hungary    V. Germain Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    Archisman Ghosh International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India    S. Ghosh Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    J. A. Giaime Louisiana State University, Baton Rouge, LA 70803, USA LIGO Livingston Observatory, Livingston, LA 70754, USA    K. D. Giardina LIGO Livingston Observatory, Livingston, LA 70754, USA    A. Giazotto INFN, Sezione di Pisa, I-56127 Pisa, Italy    K. Gill Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA    A. Glaefke SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. Goetz University of Michigan, Ann Arbor, MI 48109, USA    R. Goetz University of Florida, Gainesville, FL 32611, USA    L. Gondan MTA Eötvös University, “Lendulet” Astrophysics Research Group, Budapest 1117, Hungary    J. M. Gonzalez Castro Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    A. Gopakumar Tata Institute of Fundamental Research, Mumbai 400005, India    N. A. Gordon SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    M. L. Gorodetsky Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    S. E. Gossan LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Gosselin European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    R. Gouaty Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    C. Graef SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    P. B. Graff University of Maryland, College Park, MD 20742, USA    M. Granata Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    A. Grant SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. Gras LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    C. Gray LIGO Hanford Observatory, Richland, WA 99352, USA    G. Greco Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    A. C. Green University of Birmingham, Birmingham B15 2TT, United Kingdom    P. Groot Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands    H. Grote Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    S. Grunewald Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    G. M. Guidi Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    X. Guo Tsinghua University, Beijing 100084, China    A. Gupta Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    M. K. Gupta Institute for Plasma Research, Bhat, Gandhinagar 382428, India    K. E. Gushwa LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. K. Gustafson LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Gustafson University of Michigan, Ann Arbor, MI 48109, USA    J. J. Hacker California State University Fullerton, Fullerton, CA 92831, USA    B. R. Hall Washington State University, Pullman, WA 99164, USA    E. D. Hall LIGO, California Institute of Technology, Pasadena, CA 91125, USA    G. Hammond SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    M. Haney Tata Institute of Fundamental Research, Mumbai 400005, India    M. M. Hanke Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Hanks LIGO Hanford Observatory, Richland, WA 99352, USA    C. Hanna The Pennsylvania State University, University Park, PA 16802, USA    M. D. Hannam Cardiff University, Cardiff CF24 3AA, United Kingdom    J. Hanson LIGO Livingston Observatory, Livingston, LA 70754, USA    T. Hardwick Louisiana State University, Baton Rouge, LA 70803, USA    J. Harms Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    G. M. Harry American University, Washington, D.C. 20016, USA    I. W. Harry Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    M. J. Hart SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    M. T. Hartman University of Florida, Gainesville, FL 32611, USA    C.-J. Haster University of Birmingham, Birmingham B15 2TT, United Kingdom    K. Haughian SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. Heidmann Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    M. C. Heintze University of Florida, Gainesville, FL 32611, USA LIGO Livingston Observatory, Livingston, LA 70754, USA    H. Heitmann Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    P. Hello LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    G. Hemming European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. Hendry SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    I. S. Heng SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J. Hennig SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. W. Heptonstall LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Heurs Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    S. Hild SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    D. Hoak University of Massachusetts-Amherst, Amherst, MA 01003, USA    K. A. Hodge LIGO, California Institute of Technology, Pasadena, CA 91125, USA    D. Hofman Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    S. E. Hollitt University of Adelaide, Adelaide, South Australia 5005, Australia    K. Holt LIGO Livingston Observatory, Livingston, LA 70754, USA    D. E. Holz University of Chicago, Chicago, IL 60637, USA    P. Hopkins Cardiff University, Cardiff CF24 3AA, United Kingdom    D. J. Hosken University of Adelaide, Adelaide, South Australia 5005, Australia    J. Hough SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. A. Houston SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. J. Howell University of Western Australia, Crawley, Western Australia 6009, Australia    Y. M. Hu SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. Huang National Tsing Hua University, Hsinchu City, 30013 Taiwan, Republic of China    E. A. Huerta West Virginia University, Morgantown, WV 26506, USA Northwestern University, Evanston, IL 60208, USA    D. Huet LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    B. Hughey Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA    S. Husa Universitat de les Illes Balears, IAC3—IEEC, E-07122 Palma de Mallorca, Spain    S. H. Huttner SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    T. Huynh-Dinh LIGO Livingston Observatory, Livingston, LA 70754, USA    A. Idrisy The Pennsylvania State University, University Park, PA 16802, USA    N. Indik Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    D. R. Ingram LIGO Hanford Observatory, Richland, WA 99352, USA    R. Inta Texas Tech University, Lubbock, TX 79409, USA    H. N. Isa SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J.-M. Isac Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    M. Isi LIGO, California Institute of Technology, Pasadena, CA 91125, USA    G. Islas California State University Fullerton, Fullerton, CA 92831, USA    T. Isogai LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    B. R. Iyer International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India    K. Izumi LIGO Hanford Observatory, Richland, WA 99352, USA    T. Jacqmin Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, F-75005 Paris, France    H. Jang Korea Institute of Science and Technology Information, Daejeon 305-806, Korea    K. Jani Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    P. Jaranowski University of Białystok, 15-424 Białystok, Poland    S. Jawahar SUPA, University of Strathclyde, Glasgow G1 1XQ, United Kingdom    W. W. Johnson Louisiana State University, Baton Rouge, LA 70803, USA    D. I. Jones University of Southampton, Southampton SO17 1BJ, United Kingdom    R. Jones SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    R. J. G. Jonker Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    L. Ju University of Western Australia, Crawley, Western Australia 6009, Australia    Haris K IISER-TVM, CET Campus, Trivandrum Kerala 695016, India    C. V. Kalaghatgi Chennai Mathematical Institute, Chennai 603103, India Cardiff University, Cardiff CF24 3AA, United Kingdom    V. Kalogera Northwestern University, Evanston, IL 60208, USA    S. Kandhasamy The University of Mississippi, University, MS 38677, USA    G. Kang Korea Institute of Science and Technology Information, Daejeon 305-806, Korea    J. B. Kanner LIGO, California Institute of Technology, Pasadena, CA 91125, USA    S. Karki University of Oregon, Eugene, OR 97403, USA    M. Kasprzack Louisiana State University, Baton Rouge, LA 70803, USA LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    E. Katsavounidis LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    W. Katzman LIGO Livingston Observatory, Livingston, LA 70754, USA    S. Kaufer Leibniz Universität Hannover, D-30167 Hannover, Germany    T. Kaur University of Western Australia, Crawley, Western Australia 6009, Australia    K. Kawabe LIGO Hanford Observatory, Richland, WA 99352, USA    F. Kawazoe Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    M. S. Kehl Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario M5S 3H8, Canada    D. Keitel Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Universitat de les Illes Balears, IAC3—IEEC, E-07122 Palma de Mallorca, Spain    D. B. Kelley Syracuse University, Syracuse, NY 13244, USA    W. Kells LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Kennedy The University of Sheffield, Sheffield S10 2TN, United Kingdom    J. S. Key The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    A. Khalaidovski Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    F. Y. Khalili Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    I. Khan INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy    S. Khan Cardiff University, Cardiff CF24 3AA, United Kingdom    Z. Khan Institute for Plasma Research, Bhat, Gandhinagar 382428, India    E. A. Khazanov Institute of Applied Physics, Nizhny Novgorod, 603950, Russia    N. Kijbunchoo LIGO Hanford Observatory, Richland, WA 99352, USA    C. Kim Korea Institute of Science and Technology Information, Daejeon 305-806, Korea    J. Kim Pusan National University, Busan 609-735, Korea    K. Kim Hanyang University, Seoul 133-791, Korea    Nam-Gyu Kim Korea Institute of Science and Technology Information, Daejeon 305-806, Korea    Namjun Kim Stanford University, Stanford, CA 94305, USA    Y.-M. Kim Pusan National University, Busan 609-735, Korea    E. J. King University of Adelaide, Adelaide, South Australia 5005, Australia    P. J. King LIGO Hanford Observatory, Richland, WA 99352, USA    D. L. Kinzel LIGO Livingston Observatory, Livingston, LA 70754, USA    J. S. Kissel LIGO Hanford Observatory, Richland, WA 99352, USA    L. Kleybolte Universität Hamburg, D-22761 Hamburg, Germany    S. Klimenko University of Florida, Gainesville, FL 32611, USA    S. M. Koehlenbeck Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    K. Kokeyama Louisiana State University, Baton Rouge, LA 70803, USA    S. Koley Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    V. Kondrashov LIGO, California Institute of Technology, Pasadena, CA 91125, USA    A. Kontos LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Korobko Universität Hamburg, D-22761 Hamburg, Germany    W. Z. Korth LIGO, California Institute of Technology, Pasadena, CA 91125, USA    I. Kowalska Astronomical Observatory Warsaw University, 00-478 Warsaw, Poland    D. B. Kozak LIGO, California Institute of Technology, Pasadena, CA 91125, USA    V. Kringel Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    B. Krishnan Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    C. Krueger Leibniz Universität Hannover, D-30167 Hannover, Germany    G. Kuehn Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    P. Kumar Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario M5S 3H8, Canada    L. Kuo National Tsing Hua University, Hsinchu City, 30013 Taiwan, Republic of China    A. Kutynia NCBJ, 05-400 Świerk-Otwock, Poland    B. D. Lackey Syracuse University, Syracuse, NY 13244, USA    M. Landry LIGO Hanford Observatory, Richland, WA 99352, USA    J. Lange Rochester Institute of Technology, Rochester, NY 14623, USA    B. Lantz Stanford University, Stanford, CA 94305, USA    P. D. Lasky Monash University, Victoria 3800, Australia    A. Lazzarini LIGO, California Institute of Technology, Pasadena, CA 91125, USA    C. Lazzaro Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA INFN, Sezione di Padova, I-35131 Padova, Italy    P. Leaci Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    S. Leavey SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    E. O. Lebigot APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France Tsinghua University, Beijing 100084, China    C. H. Lee Pusan National University, Busan 609-735, Korea    H. K. Lee Hanyang University, Seoul 133-791, Korea    H. M. Lee Seoul National University, Seoul 151-742, Korea    K. Lee SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. Lenon Syracuse University, Syracuse, NY 13244, USA    M. Leonardi Università di Trento, Dipartimento di Fisica, I-38123 Povo, Trento, Italy INFN, Trento Institute for Fundamental Physics and Applications, I-38123 Povo, Trento, Italy    J. R. Leong Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    N. Leroy LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    N. Letendre Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    Y. Levin Monash University, Victoria 3800, Australia    B. M. Levine LIGO Hanford Observatory, Richland, WA 99352, USA    T. G. F. Li LIGO, California Institute of Technology, Pasadena, CA 91125, USA    A. Libson LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. B. Littenberg University of Alabama in Huntsville, Huntsville, AL 35899, USA    N. A. Lockerbie SUPA, University of Strathclyde, Glasgow G1 1XQ, United Kingdom    J. Logue SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. L. Lombardi University of Massachusetts-Amherst, Amherst, MA 01003, USA    J. E. Lord Syracuse University, Syracuse, NY 13244, USA    M. Lorenzini INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    V. Loriette ESPCI, CNRS, F-75005 Paris, France    M. Lormand LIGO Livingston Observatory, Livingston, LA 70754, USA    G. Losurdo INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    J. D. Lough Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    A. P. Lundgren Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Luo Carleton College, Northfield, MN 55057, USA    R. Lynch LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    Y. Ma University of Western Australia, Crawley, Western Australia 6009, Australia    T. MacDonald Stanford University, Stanford, CA 94305, USA    B. Machenschalk Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. MacInnis LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    D. M. Macleod Louisiana State University, Baton Rouge, LA 70803, USA    R. M. Magee Washington State University, Pullman, WA 99164, USA    M. Mageswaran LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. Majorana INFN, Sezione di Roma, I-00185 Roma, Italy    I. Maksimovic ESPCI, CNRS, F-75005 Paris, France    V. Malvezzi Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    N. Man Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    I. Mandel University of Birmingham, Birmingham B15 2TT, United Kingdom    V. Mandic University of Minnesota, Minneapolis, MN 55455, USA    V. Mangano SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    G. L. Mansell Australian National University, Canberra, Australian Capital Territory 0200, Australia    M. Manske University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    M. Mantovani European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    F. Marchesoni Università di Camerino, Dipartimento di Fisica, I-62032 Camerino, Italy INFN, Sezione di Perugia, I-06123 Perugia, Italy    F. Marion Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    A. S. Markosyan Stanford University, Stanford, CA 94305, USA    E. Maros LIGO, California Institute of Technology, Pasadena, CA 91125, USA    F. Martelli Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    L. Martellini Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    I. W. Martin SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    R. M. Martin University of Florida, Gainesville, FL 32611, USA    D. V. Martynov LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. N. Marx LIGO, California Institute of Technology, Pasadena, CA 91125, USA    K. Mason LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    A. Masserot Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    T. J. Massinger Syracuse University, Syracuse, NY 13244, USA    M. Masso-Reid SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    F. Matichard LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    L. Matone Columbia University, New York, NY 10027, USA    N. Mavalvala LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    N. Mazumder Washington State University, Pullman, WA 99164, USA    G. Mazzolo Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    R. McCarthy LIGO Hanford Observatory, Richland, WA 99352, USA    D. E. McClelland Australian National University, Canberra, Australian Capital Territory 0200, Australia    S. McCormick LIGO Livingston Observatory, Livingston, LA 70754, USA    S. C. McGuire Southern University and A&M College, Baton Rouge, LA 70813, USA    G. McIntyre LIGO, California Institute of Technology, Pasadena, CA 91125, USA    J. McIver LIGO, California Institute of Technology, Pasadena, CA 91125, USA    D. J. McManus Australian National University, Canberra, Australian Capital Territory 0200, Australia    S. T. McWilliams West Virginia University, Morgantown, WV 26506, USA    D. Meacher The Pennsylvania State University, University Park, PA 16802, USA    G. D. Meadors Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Meidam Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    A. Melatos The University of Melbourne, Parkville, Victoria 3010, Australia    G. Mendell LIGO Hanford Observatory, Richland, WA 99352, USA    D. Mendoza-Gandara Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    R. A. Mercer University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    E. Merilh LIGO Hanford Observatory, Richland, WA 99352, USA    M. Merzougui Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    S. Meshkov LIGO, California Institute of Technology, Pasadena, CA 91125, USA    C. Messenger SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    C. Messick The Pennsylvania State University, University Park, PA 16802, USA    P. M. Meyers University of Minnesota, Minneapolis, MN 55455, USA    F. Mezzani INFN, Sezione di Roma, I-00185 Roma, Italy Università di Roma “La Sapienza,” I-00185 Roma, Italy    H. Miao University of Birmingham, Birmingham B15 2TT, United Kingdom    C. Michel Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    H. Middleton University of Birmingham, Birmingham B15 2TT, United Kingdom    E. E. Mikhailov College of William and Mary, Williamsburg, VA 23187, USA    L. Milano Università di Napoli “Federico II,” Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    J. Miller LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Millhouse Montana State University, Bozeman, MT 59717, USA    Y. Minenkov INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    J. Ming Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    S. Mirshekari Instituto de Física Teórica, University Estadual Paulista/ICTP South American Institute for Fundamental Research, São Paulo SP 01140-070, Brazil    C. Mishra International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India    S. Mitra Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    V. P. Mitrofanov Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    G. Mitselmakher University of Florida, Gainesville, FL 32611, USA    R. Mittleman LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    A. Moggi INFN, Sezione di Pisa, I-56127 Pisa, Italy    M. Mohan European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    S. R. P. Mohapatra LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Montani Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    B. C. Moore Montclair State University, Montclair, NJ 07043, USA    C. J. Moore University of Cambridge, Cambridge CB2 1TN, United Kingdom    D. Moraru LIGO Hanford Observatory, Richland, WA 99352, USA    G. Moreno LIGO Hanford Observatory, Richland, WA 99352, USA    S. R. Morriss The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    K. Mossavi Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    B. Mours Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    C. M. Mow-Lowry University of Birmingham, Birmingham B15 2TT, United Kingdom    C. L. Mueller University of Florida, Gainesville, FL 32611, USA    G. Mueller University of Florida, Gainesville, FL 32611, USA    A. W. Muir Cardiff University, Cardiff CF24 3AA, United Kingdom    Arunava Mukherjee International Centre for Theoretical Sciences, Tata Institute of Fundamental Research, Bangalore 560012, India    D. Mukherjee University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    S. Mukherjee The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    N. Mukund Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    A. Mullavey LIGO Livingston Observatory, Livingston, LA 70754, USA    J. Munch University of Adelaide, Adelaide, South Australia 5005, Australia    D. J. Murphy Columbia University, New York, NY 10027, USA    P. G. Murray SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. Mytidis University of Florida, Gainesville, FL 32611, USA    I. Nardecchia Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    L. Naticchioni Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    R. K. Nayak IISER-Kolkata, Mohanpur, West Bengal 741252, India    V. Necula University of Florida, Gainesville, FL 32611, USA    K. Nedkova University of Massachusetts-Amherst, Amherst, MA 01003, USA    G. Nelemans Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    M. Neri Università degli Studi di Genova, I-16146 Genova, Italy INFN, Sezione di Genova, I-16146 Genova, Italy    A. Neunzert University of Michigan, Ann Arbor, MI 48109, USA    G. Newton SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    T. T. Nguyen Australian National University, Canberra, Australian Capital Territory 0200, Australia    A. B. Nielsen Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    S. Nissanke Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    A. Nitz Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    F. Nocera European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    D. Nolting LIGO Livingston Observatory, Livingston, LA 70754, USA    M. E. N. Normandin The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    L. K. Nuttall Syracuse University, Syracuse, NY 13244, USA    J. Oberling LIGO Hanford Observatory, Richland, WA 99352, USA    E. Ochsner University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    J. O’Dell Rutherford Appleton Laboratory, HSIC, Chilton, Didcot, Oxon OX11 0QX, United Kingdom    E. Oelker LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    G. H. Ogin Whitman College, 345 Boyer Avenue, Walla Walla, WA 99362 USA    J. J. Oh National Institute for Mathematical Sciences, Daejeon 305-390, Korea    S. H. Oh National Institute for Mathematical Sciences, Daejeon 305-390, Korea    F. Ohme Cardiff University, Cardiff CF24 3AA, United Kingdom    M. Oliver Universitat de les Illes Balears, IAC3—IEEC, E-07122 Palma de Mallorca, Spain    P. Oppermann Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    Richard J. Oram LIGO Livingston Observatory, Livingston, LA 70754, USA    B. O’Reilly LIGO Livingston Observatory, Livingston, LA 70754, USA    R. O’Shaughnessy Rochester Institute of Technology, Rochester, NY 14623, USA    D. J. Ottaway University of Adelaide, Adelaide, South Australia 5005, Australia    R. S. Ottens University of Florida, Gainesville, FL 32611, USA    H. Overmier LIGO Livingston Observatory, Livingston, LA 70754, USA    B. J. Owen Texas Tech University, Lubbock, TX 79409, USA    A. Pai IISER-TVM, CET Campus, Trivandrum Kerala 695016, India    S. A. Pai RRCAT, Indore MP 452013, India    J. R. Palamos University of Oregon, Eugene, OR 97403, USA    O. Palashov Institute of Applied Physics, Nizhny Novgorod, 603950, Russia    C. Palomba INFN, Sezione di Roma, I-00185 Roma, Italy    A. Pal-Singh Universität Hamburg, D-22761 Hamburg, Germany    H. Pan National Tsing Hua University, Hsinchu City, 30013 Taiwan, Republic of China    C. Pankow Northwestern University, Evanston, IL 60208, USA    F. Pannarale Cardiff University, Cardiff CF24 3AA, United Kingdom    B. C. Pant RRCAT, Indore MP 452013, India    F. Paoletti European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    A. Paoli European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. A. Papa Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    H. R. Paris Stanford University, Stanford, CA 94305, USA    W. Parker LIGO Livingston Observatory, Livingston, LA 70754, USA    D. Pascucci SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    A. Pasqualetti European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    R. Passaquieti Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    D. Passuello INFN, Sezione di Pisa, I-56127 Pisa, Italy    B. Patricelli Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    Z. Patrick Stanford University, Stanford, CA 94305, USA    B. L. Pearlstone SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    M. Pedraza LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Pedurand Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    L. Pekowsky Syracuse University, Syracuse, NY 13244, USA    A. Pele LIGO Livingston Observatory, Livingston, LA 70754, USA    S. Penn Hobart and William Smith Colleges, Geneva, NY 14456, USA    A. Perreca LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Phelps SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    O. Piccinni Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    M. Pichot Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    F. Piergiovanni Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    V. Pierro University of Sannio at Benevento, I-82100 Benevento, Italy and INFN, Sezione di Napoli, I-80100 Napoli, Italy    G. Pillant European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    L. Pinard Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    I. M. Pinto University of Sannio at Benevento, I-82100 Benevento, Italy and INFN, Sezione di Napoli, I-80100 Napoli, Italy    M. Pitkin SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    R. Poggiani Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    P. Popolizio European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    A. Post Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Powell SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J. Prasad Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    V. Predoi Cardiff University, Cardiff CF24 3AA, United Kingdom    S. S. Premachandra Monash University, Victoria 3800, Australia    T. Prestegard University of Minnesota, Minneapolis, MN 55455, USA    L. R. Price LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Prijatelj European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. Principe University of Sannio at Benevento, I-82100 Benevento, Italy and INFN, Sezione di Napoli, I-80100 Napoli, Italy    S. Privitera Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    R. Prix Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    G. A. Prodi Università di Trento, Dipartimento di Fisica, I-38123 Povo, Trento, Italy INFN, Trento Institute for Fundamental Physics and Applications, I-38123 Povo, Trento, Italy    L. Prokhorov Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    O. Puncken Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. Punturo INFN, Sezione di Perugia, I-06123 Perugia, Italy    P. Puppo INFN, Sezione di Roma, I-00185 Roma, Italy    H. Qi University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    J. Qin University of Western Australia, Crawley, Western Australia 6009, Australia    V. Quetschke The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    E. A. Quintero LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Quitzow-James University of Oregon, Eugene, OR 97403, USA    F. J. Raab LIGO Hanford Observatory, Richland, WA 99352, USA    D. S. Rabeling Australian National University, Canberra, Australian Capital Territory 0200, Australia    H. Radkins LIGO Hanford Observatory, Richland, WA 99352, USA    P. Raffai MTA Eötvös University, “Lendulet” Astrophysics Research Group, Budapest 1117, Hungary    S. Raja RRCAT, Indore MP 452013, India    M. Rakhmanov The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    P. Rapagnani Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    V. Raymond Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    M. Razzano Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    V. Re Università di Roma Tor Vergata, I-00133 Roma, Italy    J. Read California State University Fullerton, Fullerton, CA 92831, USA    C. M. Reed LIGO Hanford Observatory, Richland, WA 99352, USA    T. Regimbau Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    L. Rei INFN, Sezione di Genova, I-16146 Genova, Italy    S. Reid SUPA, University of the West of Scotland, Paisley PA1 2BE, United Kingdom    D. H. Reitze LIGO, California Institute of Technology, Pasadena, CA 91125, USA University of Florida, Gainesville, FL 32611, USA    H. Rew College of William and Mary, Williamsburg, VA 23187, USA    S. D. Reyes Syracuse University, Syracuse, NY 13244, USA    F. Ricci Università di Roma “La Sapienza,” I-00185 Roma, Italy INFN, Sezione di Roma, I-00185 Roma, Italy    K. Riles University of Michigan, Ann Arbor, MI 48109, USA    N. A. Robertson LIGO, California Institute of Technology, Pasadena, CA 91125, USA SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    R. Robie SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    F. Robinet LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France    A. Rocchi INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    L. Rolland Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    J. G. Rollins LIGO, California Institute of Technology, Pasadena, CA 91125, USA    V. J. Roma University of Oregon, Eugene, OR 97403, USA    J. D. Romano The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    R. Romano Università di Salerno, Fisciano, I-84084 Salerno, Italy INFN, Sezione di Napoli, Complesso Universitario di Monte S.Angelo, I-80126 Napoli, Italy    G. Romanov College of William and Mary, Williamsburg, VA 23187, USA    J. H. Romie LIGO Livingston Observatory, Livingston, LA 70754, USA    S. Rowan SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    P. Ruggi European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    K. Ryan LIGO Hanford Observatory, Richland, WA 99352, USA    S. Sachdev LIGO, California Institute of Technology, Pasadena, CA 91125, USA    T. Sadecki LIGO Hanford Observatory, Richland, WA 99352, USA    L. Sadeghian University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    L. Salconi European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. Saleem IISER-TVM, CET Campus, Trivandrum Kerala 695016, India    F. Salemi Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. Samajdar IISER-Kolkata, Mohanpur, West Bengal 741252, India    L. Sammut The University of Melbourne, Parkville, Victoria 3010, Australia Monash University, Victoria 3800, Australia    E. J. Sanchez LIGO, California Institute of Technology, Pasadena, CA 91125, USA    V. Sandberg LIGO Hanford Observatory, Richland, WA 99352, USA    B. Sandeen Northwestern University, Evanston, IL 60208, USA    J. R. Sanders University of Michigan, Ann Arbor, MI 48109, USA Syracuse University, Syracuse, NY 13244, USA    B. Sassolas Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    B. S. Sathyaprakash Cardiff University, Cardiff CF24 3AA, United Kingdom    P. R. Saulson Syracuse University, Syracuse, NY 13244, USA    O. Sauter University of Michigan, Ann Arbor, MI 48109, USA    R. L. Savage LIGO Hanford Observatory, Richland, WA 99352, USA    A. Sawadsky Leibniz Universität Hannover, D-30167 Hannover, Germany    P. Schale University of Oregon, Eugene, OR 97403, USA    R. Schilling Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Schmidt Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    P. Schmidt LIGO, California Institute of Technology, Pasadena, CA 91125, USA Caltech CaRT, Pasadena, CA 91125, USA    R. Schnabel Universität Hamburg, D-22761 Hamburg, Germany    R. M. S. Schofield University of Oregon, Eugene, OR 97403, USA    E. Schreiber Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    D. Schuette Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    B. F. Schutz Cardiff University, Cardiff CF24 3AA, United Kingdom Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    J. Scott SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. M. Scott Australian National University, Canberra, Australian Capital Territory 0200, Australia    D. Sellers LIGO Livingston Observatory, Livingston, LA 70754, USA    A. S. Sengupta Indian Institute of Technology, Gandhinagar Ahmedabad Gujarat 382424, India    D. Sentenac European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    V. Sequino Università di Roma Tor Vergata, I-00133 Roma, Italy INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy    A. Sergeev Institute of Applied Physics, Nizhny Novgorod, 603950, Russia    G. Serna California State University Fullerton, Fullerton, CA 92831, USA    Y. Setyawati Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    A. Sevigny LIGO Hanford Observatory, Richland, WA 99352, USA    D. A. Shaddock Australian National University, Canberra, Australian Capital Territory 0200, Australia    S. Shah Department of Astrophysics/IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    M. S. Shahriar Northwestern University, Evanston, IL 60208, USA    M. Shaltev Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    Z. Shao LIGO, California Institute of Technology, Pasadena, CA 91125, USA    B. Shapiro Stanford University, Stanford, CA 94305, USA    P. Shawhan University of Maryland, College Park, MD 20742, USA    A. Sheperd University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    D. H. Shoemaker LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    D. M. Shoemaker Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    K. Siellez Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France Center for Relativistic Astrophysics and School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA    X. Siemens University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    D. Sigg LIGO Hanford Observatory, Richland, WA 99352, USA    A. D. Silva Instituto Nacional de Pesquisas Espaciais, 12227-010 São José dos Campos, São Paulo, Brazil    D. Simakov Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. Singer LIGO, California Institute of Technology, Pasadena, CA 91125, USA    L. P. Singer NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA    A. Singh Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    R. Singh Louisiana State University, Baton Rouge, LA 70803, USA    A. Singhal INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy    A. M. Sintes Universitat de les Illes Balears, IAC3—IEEC, E-07122 Palma de Mallorca, Spain    B. J. J. Slagmolen Australian National University, Canberra, Australian Capital Territory 0200, Australia    J. R. Smith California State University Fullerton, Fullerton, CA 92831, USA    N. D. Smith LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. J. E. Smith LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. J. Son National Institute for Mathematical Sciences, Daejeon 305-390, Korea    B. Sorazu SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    F. Sorrentino INFN, Sezione di Genova, I-16146 Genova, Italy    T. Souradeep Inter-University Centre for Astronomy and Astrophysics, Pune 411007, India    A. K. Srivastava Institute for Plasma Research, Bhat, Gandhinagar 382428, India    A. Staley Columbia University, New York, NY 10027, USA    M. Steinke Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. Steinlechner SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    S. Steinlechner SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    D. Steinmeyer Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    B. C. Stephens University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    R. Stone The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    K. A. Strain SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    N. Straniero Laboratoire des Matériaux Avancés (LMA), IN2P3/CNRS, Université de Lyon, F-69622 Villeurbanne, Lyon, France    G. Stratta Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    N. A. Strauss Carleton College, Northfield, MN 55057, USA    S. Strigin Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    R. Sturani Instituto de Física Teórica, University Estadual Paulista/ICTP South American Institute for Fundamental Research, São Paulo SP 01140-070, Brazil    A. L. Stuver LIGO Livingston Observatory, Livingston, LA 70754, USA    T. Z. Summerscales Andrews University, Berrien Springs, MI 49104, USA    L. Sun The University of Melbourne, Parkville, Victoria 3010, Australia    P. J. Sutton Cardiff University, Cardiff CF24 3AA, United Kingdom    B. L. Swinkels European Gravitational Observatory (EGO), I-56021 Cascina, Pisa, Italy    M. Tacca APC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, F-75205 Paris Cedex 13, France    D. Talukder University of Oregon, Eugene, OR 97403, USA    D. B. Tanner University of Florida, Gainesville, FL 32611, USA    S. P. Tarabrin Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. Taracchini Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    R. Taylor LIGO, California Institute of Technology, Pasadena, CA 91125, USA    T. Theeg Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. P. Thirugnanasambandam LIGO, California Institute of Technology, Pasadena, CA 91125, USA    E. G. Thomas University of Birmingham, Birmingham B15 2TT, United Kingdom    M. Thomas LIGO Livingston Observatory, Livingston, LA 70754, USA    P. Thomas LIGO Hanford Observatory, Richland, WA 99352, USA    K. A. Thorne LIGO Livingston Observatory, Livingston, LA 70754, USA    K. S. Thorne Caltech CaRT, Pasadena, CA 91125, USA    E. Thrane Monash University, Victoria 3800, Australia    S. Tiwari INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy    V. Tiwari Cardiff University, Cardiff CF24 3AA, United Kingdom    K. V. Tokmakov SUPA, University of Strathclyde, Glasgow G1 1XQ, United Kingdom    C. Tomlinson The University of Sheffield, Sheffield S10 2TN, United Kingdom    M. Tonelli Università di Pisa, I-56127 Pisa, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    C. V. Torres The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    C. I. Torrie LIGO, California Institute of Technology, Pasadena, CA 91125, USA    F. Travasso Università di Perugia, I-06123 Perugia, Italy INFN, Sezione di Perugia, I-06123 Perugia, Italy    G. Traylor LIGO Livingston Observatory, Livingston, LA 70754, USA    M. C. Tringali Università di Trento, Dipartimento di Fisica, I-38123 Povo, Trento, Italy INFN, Trento Institute for Fundamental Physics and Applications, I-38123 Povo, Trento, Italy    L. Trozzo Università di Siena, I-53100 Siena, Italy INFN, Sezione di Pisa, I-56127 Pisa, Italy    M. Tse LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Turconi Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    D. Tuyenbayev The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    D. Ugolini Trinity University, San Antonio, TX 78212, USA    C. S. Unnikrishnan Tata Institute of Fundamental Research, Mumbai 400005, India    A. L. Urban University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA    S. A. Usman Syracuse University, Syracuse, NY 13244, USA    H. Vahlbruch Leibniz Universität Hannover, D-30167 Hannover, Germany    G. Vajente LIGO, California Institute of Technology, Pasadena, CA 91125, USA    G. Valdes The University of Texas Rio Grande Valley, Brownsville, TX 78520, USA    N. van Bakel Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    M. van Beuzekom Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    J. F. J. van den Brand VU University Amsterdam, 1081 HV Amsterdam, Netherlands Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    C. Van Den Broeck Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    D. C. Vander-Hyde Syracuse University, Syracuse, NY 13244, USA California State University Fullerton, Fullerton, CA 92831, USA    L. van der Schaaf Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    J. V. van Heijningen Nikhef, Science Park, 1098 XG Amsterdam, Netherlands    A. A. van Veggel SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    M. Vardaro Università di Padova, Dipartimento di Fisica e Astronomia, I-35131 Padova, Italy INFN, Sezione di Padova, I-35131 Padova, Italy    S. Vass LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Vaulin LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    A. Vecchio University of Birmingham, Birmingham B15 2TT, United Kingdom    G. Vedovato INFN, Sezione di Padova, I-35131 Padova, Italy    J. Veitch University of Birmingham, Birmingham B15 2TT, United Kingdom    P. J. Veitch University of Adelaide, Adelaide, South Australia 5005, Australia    K. Venkateswara University of Washington, Seattle, WA 98195, USA    D. Verkindt Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    F. Vetrano Università degli Studi di Urbino “Carlo Bo,” I-61029 Urbino, Italy INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Firenze, Italy    S. Vinciguerra University of Birmingham, Birmingham B15 2TT, United Kingdom    D. J. Vine SUPA, University of the West of Scotland, Paisley PA1 2BE, United Kingdom    J.-Y. Vinet Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    S. Vitale LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. Vo Syracuse University, Syracuse, NY 13244, USA    H. Vocca Università di Perugia, I-06123 Perugia, Italy INFN, Sezione di Perugia, I-06123 Perugia, Italy    C. Vorvick LIGO Hanford Observatory, Richland, WA 99352, USA    D. Voss University of Florida, Gainesville, FL 32611, USA    W. D. Vousden University of Birmingham, Birmingham B15 2TT, United Kingdom    S. P. Vyatchanin Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia    A. R. Wade Australian National University, Canberra, Australian Capital Territory 0200, Australia    L. E. Wade Kenyon College, Gambier, OH 43022, USA    M. Wade Kenyon College, Gambier, OH 43022, USA    M. Walker Louisiana State University, Baton Rouge, LA 70803, USA    L. Wallace LIGO, California Institute of Technology, Pasadena, CA 91125, USA    S. Walsh University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-14476 Potsdam-Golm, Germany    G. Wang INFN, Gran Sasso Science Institute, I-67100 L’Aquila, Italy    H. Wang University of Birmingham, Birmingham B15 2TT, United Kingdom    M. Wang University of Birmingham, Birmingham B15 2TT, United Kingdom    X. Wang Tsinghua University, Beijing 100084, China    Y. Wang University of Western Australia, Crawley, Western Australia 6009, Australia    R. L. Ward Australian National University, Canberra, Australian Capital Territory 0200, Australia    J. Warner LIGO Hanford Observatory, Richland, WA 99352, USA    M. Was Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    B. Weaver LIGO Hanford Observatory, Richland, WA 99352, USA    L.-W. Wei Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, CS 34229, Nice cedex 4, France    M. Weinert Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    A. J. Weinstein LIGO, California Institute of Technology, Pasadena, CA 91125, USA    R. Weiss LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    T. Welborn LIGO Livingston Observatory, Livingston, LA 70754, USA    L. Wen University of Western Australia, Crawley, Western Australia 6009, Australia    T. Westphal Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    K. Wette Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    J. T. Whelan Rochester Institute of Technology, Rochester, NY 14623, USA Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    D. J. White The University of Sheffield, Sheffield S10 2TN, United Kingdom    B. F. Whiting University of Florida, Gainesville, FL 32611, USA    R. D. Williams LIGO, California Institute of Technology, Pasadena, CA 91125, USA    A. R. Williamson Cardiff University, Cardiff CF24 3AA, United Kingdom    J. L. Willis Abilene Christian University, Abilene, TX 79699, USA    B. Willke Leibniz Universität Hannover, D-30167 Hannover, Germany Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    M. H. Wimmer Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    W. Winkler Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany    C. C. Wipf LIGO, California Institute of Technology, Pasadena, CA 91125, USA    H. Wittel Albert-Einstein-Institut, Max-Planck-Institut für Gravitationsphysik, D-30167 Hannover, Germany Leibniz Universität Hannover, D-30167 Hannover, Germany    G. Woan SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    J. Worden LIGO Hanford Observatory, Richland, WA 99352, USA    J. L. Wright SUPA, University of Glasgow, Glasgow G12 8QQ, United Kingdom    G. Wu LIGO Livingston Observatory, Livingston, LA 70754, USA    J. Yablon Northwestern University, Evanston, IL 60208, USA    W. Yam LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    H. Yamamoto LIGO, California Institute of Technology, Pasadena, CA 91125, USA    C. C. Yancey University of Maryland, College Park, MD 20742, USA    M. J. Yap Australian National University, Canberra, Australian Capital Territory 0200, Australia    H. Yu LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    M. Yvert Laboratoire d’Annecy-le-Vieux de Physique des Particules (LAPP), Université Savoie Mont Blanc, CNRS/IN2P3, F-74941 Annecy-le-Vieux, France    L. Zangrando INFN, Sezione di Padova, I-35131 Padova, Italy    M. Zanolin Embry-Riddle Aeronautical University, Prescott, AZ 86301, USA    J.-P. Zendri INFN, Sezione di Padova, I-35131 Padova, Italy    M. Zevin Northwestern University, Evanston, IL 60208, USA    F. Zhang LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    L. Zhang LIGO, California Institute of Technology, Pasadena, CA 91125, USA    M. Zhang College of William and Mary, Williamsburg, VA 23187, USA    Y. Zhang Rochester Institute of Technology, Rochester, NY 14623, USA    C. Zhao University of Western Australia, Crawley, Western Australia 6009, Australia    M. Zhou Northwestern University, Evanston, IL 60208, USA    Z. Zhou Northwestern University, Evanston, IL 60208, USA    X. J. Zhu University of Western Australia, Crawley, Western Australia 6009, Australia    M. E. Zucker LIGO, California Institute of Technology, Pasadena, CA 91125, USA LIGO, Massachusetts Institute of Technology, Cambridge, MA 02139, USA    S. E. Zuraw University of Massachusetts-Amherst, Amherst, MA 01003, USA    J. Zweizig LIGO, California Institute of Technology, Pasadena, CA 91125, USA    Deceased, May 2015. Deceased, March 2015.
Abstract

We present the high-energy-neutrino follow-up observations of the first gravitational wave transient GW150914 observed by the Advanced LIGO detectors on Sept. 14, 2015. We search for coincident neutrino candidates within the data recorded by the IceCube and Antares neutrino detectors. A possible joint detection could be used in targeted electromagnetic follow-up observations, given the significantly better angular resolution of neutrino events compared to gravitational waves. We find no neutrino candidates in both temporal and spatial coincidence with the gravitational wave event. Within  s of the gravitational wave event, the number of neutrino candidates detected by IceCube and Antares were three and zero, respectively. This is consistent with the expected atmospheric background, and none of the neutrino candidates were directionally coincident with GW150914. We use this non-detection to constrain neutrino emission from the gravitational-wave event.

pacs:
thanks: Full author list given at the end of the article.

I Introduction

Advanced LIGO’s first observation periods 2015CQGra..32g4001T (); 2013arXiv1304.0670T () represent a major step in probing the dynamical origin of high-energy emission from cosmic transients 2013CQGra..30l3001B (). The significant improvement in gravitational wave (GW) search sensitivity enables a comprehensive multimessenger observational effort involving partner electromagnetic observatories from radio to gamma-rays, as well as neutrino detectors. The goals of multimessenger observations are to gain a more complete understanding of cosmic processes through a combination of information from different probes, and to increase search sensitivity over an analysis using a single messenger 2013APh….45…56S (); 2013RvMP…85.1401A (); 2014ApJ…795…43F ().

The merger of neutron stars and black holes, and potentially massive stellar core collapse with rapidly rotating cores, are expected to be significant sources of GWs 2013CQGra..30l3001B (). These events can result in a black hole plus accretion disk system that drives a relativistic outflow 1989Natur.340..126E (); 1993ApJ…405..273W (). Energy dissipation in the outflow produces non-thermal, high-energy radiation that is observed as gamma-ray bursts (GRBs), and may have a  GeV neutrino component at comparable luminosities.

Multiple detectors have been built that can search for this high-energy neutrino signature, including the IceCube Neutrino Observatory—a cubic-kilometer facility at the South Pole 2006APh….26..155I (); 2009NIMPA.601..294A (); 2010NIMPA.618..139A (), and Antares ANTARES (); 2007NIMPA.570..107A (); 2005NIMPA.555..132A () in the Mediterranean sea. The construction of the KM3NeT cubic-kilometer scale neutrino detector in the Mediterranean Sea has started in December 2015 with the successful deployment of the first detection string 2016arXiv160107459A (). IceCube is planning a substantial increase in sensitivity with near-future upgrades 2014arXiv1412.5106I (); 2014arXiv1401.2046T (). Another facility, the Baikal Neutrino Telescope is also planning an upgrade to cubic-kilometer volume Avrorin2011S13 (). An astrophysical high-energy neutrino flux has recently been discovered by IceCube 2014PhRvL.113j1101A (); 2015PhRvL.115h1102A (); 2015PhRvD..91b2001A (); 2015ApJ…809…98A (), demonstrating the production of non-thermal high-energy neutrinos. The specific origin of this neutrino flux is currently unknown. Multimessenger analyses constraining the common sources of high-energy neutrinos and GWs have been carried out in the past with both Antares and IceCube 2011PhRvL.107y1101B (); 2013JCAP…06..008A (); 2014PhRvD..90j2002A ().

On Sept. 14, 2015 at 09:50:45 UTC, a highly significant GW signal was recorded by the LIGO Hanford, WA and Livingston, LA detectors G184098 (). The event, labeled GW150914, was produced by a stellar-mass binary black hole merger at redshift . The reconstructed mass of each black hole is  M. Such a system may produce electromagnetic emission and emit neutrinos if the merger happens in a sufficiently baryon-dense environment, and a black hole plus accretion disk system is formed 2002ARA&A..40..137M (). Current consensus is that such a scenario is unlikely, nevertheless, there are no significant observational constraints.

Here we report the results of a neutrino follow-up search of GW150914 using Antares and IceCube. After brief descriptions of the GW search (Section II) and the neutrino follow-up (Section III), we present the joint analysis, results of the search and source constraints, and conclusions (Section IV).

Ii Gravitational Wave Data Analysis and Discovery

GW150914 was initially identified by low-latency searches for generic GW transients 2008CQGra..25k4029K (); CWB2G:2015all (); Burstcompanion (). Subsequent analysis with three independent matched-filter analyses using models of compact binary coalescence waveforms CBCcompanion (); PEcompanion () confirmed that the event was produced by the merger of two black holes. The analyses established a false alarm rate of less than 1 event per  years, equivalent to a significance G184098 (). Source parameters were reconstructed using the LALInference package 2013PhRvD..88f2001A (); 2015PhRvD..91d2003V (); PEcompanion (), finding black-hole masses  M and  M and luminosity distance  Mpc, where the error ranges correspond to the range of the 90% credible interval. The duration of the signal within LIGO’s sensitive band was  s.

The directional point spread function (sky map) of the GW event was computed through the full parameter estimation of the signal, carried out using the LALInference package 2013PhRvD..88f2001A (); 2015PhRvD..91d2003V (). The LALInference results presented here account for calibration uncertainty in the GW strain signal. The sky map is shown in Fig. 1. At 90% (50%) credible level (CL), the sky map covers  ().

Iii High-energy Neutrino Coincidence Search

High-energy neutrino observatories are primarily sensitive to neutrinos with GeV energies. IceCube and Antares are both sensitive to through-going muons (called track events), produced by neutrinos near the detector, above GeV. In this analysis, Antares data include only up-going tracks for events originating from the Southern hemisphere, while IceCube data include both up-going tracks (from the Northern hemisphere) as well as down-going tracks (from the Southern hemisphere). The energy threshold of neutrino candidates increases in the Southern hemisphere for IceCube, since downward-going atmospheric muons are not filtered by the Earth, greatly increasing the background at lower energies. Neutrino times of arrival are determined at s precision.

Since neutrino telescopes continuously take data observing the whole sky, it is possible to look back and search for neutrino counterparts to an interesting GW signal at any time around the GW observation.

To search for neutrinos coincident with GW150914, we used a time window of  s around the GW transient. This search window, which was used in previous GW-neutrino searches, is a conservative, observation-based upper limit on the plausible emission of GWs and high-energy neutrinos in the case of GRBs, which are thought to be driven by a stellar-mass black hole—accretion disk system 2011APh….35….1B (). While the relative time of arrival of GWs and neutrinos can be informative 2003PhRvD..68h3001R (); 2012PhRvD..86h3007B (); 2014PhRvD..90j1301B (), here we do not use detailed temporal information beyond the  s time window.

The search for high-energy neutrino candidates recorded by IceCube within s of GW150914 used IceCube’s online event stream. The online event stream implements an event selection similar to the event selection used for neutrino point source searches 2014ApJ…796..109A (), but optimized for real-time performance at the South Pole. This event selection consists primarily of cosmic-ray-induced background events, with an expectation per 1000 seconds of 2.2 events in the Northern sky (atmospheric neutrinos), and 2.2 events in the Southern sky (high-energy atmospheric muons). In the search window of  s centered on the GW alert time (see below), one event was found in the Southern sky and two in the Northern sky, which is consistent with the background expectation. The properties of these events are listed in Table 1. The neutrino candidates’ directions are shown in Fig. 1.

The muon energy in Table 1 is reconstructed assuming a single muon is producing the event. While the event from the Southern hemisphere has a significantly greater reconstructed energy 2014JInst…9P3009A () than the other two events, of the background events in the same declination range in the Southern hemisphere have energies in excess of the one observed. The intense flux of atmospheric muons and bundles of muons that constitute the background for IceCube in the Southern hemisphere gradually falls as the cosmic ray flux declines with energy 2015arXiv150607981I (). The use of energy cuts to remove most of this background is the reason that IceCube’s sensitivity in the Southern sky is shifted to higher energies.

An additional search was performed using the high-energy starting event selection described in 2014PhRvL.113j1101A (). No events were found in coincidence with GW150914.

The IceCube detector also has sensitivity to outbursts of MeV neutrinos (as occur for example in core-collapse supernovae) via a sudden increase in the photomultiplier rates 2011A&A…535A.109A (). The global photomultiplier noise rate is monitored continuously, and deviations sufficient to trigger the lowest-level of alert occur roughly once per hour. No alert was triggered during the second time-window around the GW candidate event.

[s] RA [h] Dec [] [] E [TeV] fraction
1 8.84 175 12.5%
2 11.13 12.0 1.22 26.5%
3 8.4 0.33 98.4%
Table 1: Parameters of neutrino candidates identified by IceCube within the  s time window around GW150914. is the time of arrival of the neutrino candidates relative to that of GW150914. E is the reconstructed muon energy. is the angular uncertainty of the reconstructed track direction 2014PhRvD..89j2004A (). The last column shows the fraction of background neutrino candidates with higher reconstructed energy at the same declination ().

The search for coincident neutrinos for Antares within s of GW150914 used Antares’s online reconstruction pipeline 2015arXiv150801180A (). A fast and robust algorithm 2011APh….34..652A () selected up-going neutrino candidates with  mHz rate, with atmospheric muon contamination less than . In addition, to reduce the background of atmospheric neutrinos 2013EPJC…73.2606A (), a requirement of a minimum reconstructed energy reduced the online event rate to 1.2 events/day. Consequently, for Antares the expected number of neutrino candidates from the Southern sky in a 1000 s window in the Southern sky is 0.014. We found no neutrino events from Antares that were temporally coincident with GW150914. This is consistent with the expected background event rate.

Iv Results

iv.1 Joint analysis

Figure 1: GW skymap in equatorial coordinates, showing the reconstructed probability density contours of the GW event at 50%, 90% and 99% CL, and the reconstructed directions of high-energy neutrino candidates detected by IceCube (crosses) during a  s time window around the GW event. The neutrino directional uncertainties are and are not shown. GW shading indicates the reconstructed probability density of the GW event, darker regions corresponding to higher probability. Neutrino numbers refer to the first column of Table 1.

We carried out the joint GW and neutrino search following the analysis developed for previous GW and neutrino datasets using initial GW detectors 2012PhRvD..85j3004B (); 2014PhRvD..90j2002A (); 2011PhRvL.107y1101B (); 2011APh….35….1B (). After identifying the GW event GW150914 with the cWB pipeline, we used reconstructed neutrino candidates to search for temporal and directional coincidences between GW150914 and neutrinos. We assumed that the a priori source directional distribution is uniform. For temporal coincidence, we searched within a  s time window around GW150914.

The relative difference in propagation time for  GeV neutrinos and GWs (which travel at the speed of light in general relativity) traveling to Earth from the source is expected to be s. The relative propagation time between neutrinos and GWs may change in alternative gravity models 2007NatPh…3…87J (); GRcompanion (). However, discrepancies from general relativity could in principle be probed with a joint GW-neutrino detection by comparing the arrival times against the expected time frame of emission.

Directionally, we searched for overlap between the GW sky map and the neutrino point spread functions, assumed to be Gaussian with standard deviation (see Table 1).

The search identified no Antares neutrino candidates that were temporally coincident with GW150914.

For IceCube, none of the three neutrino candidates temporally coincident with GW150914 were compatible with the GW direction at 90% CL. Additionally, the reconstructed energy of the neutrino candidates with respect to the expected background does not make them significant. See Fig. 1 for the directional relation of GW150914 and the IceCube neutrino candidates detected within the  s window. This non-detection is consistent with our expectation from a binary black hole merger.

To better understand the probability that the detected neutrino candidates are consistent with background, we briefly consider different aspects of the data separately. First, the number of detected neutrino candidates, i.e. 3 and 0 for IceCube and Antares, respectively, is fully consistent with the expected background rate of 4.4 and for the two detectors, with p-value , where is the Poisson cumulative distribution function. Second, for the most significant reconstructed muon energy (Table 1), 12.5% of background events will have greater muon energy. The probability that at least one neutrino candidate, out of 3 detected events, has an energy high enough to make it appear even less background-like, is . Third, with the GW sky area 90% CL of , the probability of a background neutrino candidate being directionally coincident is . We expect directionally coincident neutrinos, given 3 temporal coincidences. Therefore, the probability that at least one of the 3 neutrino candidates is directionally coincident with the 90% CL skymap of GW150914 is .

iv.2 Constraints on the source

We used the non-detection of coincident neutrino candidates by Antares and IceCube to derive a standard frequentist neutrino spectral fluence upper limit for GW150914 at 90% CL. Considering no spatially and temporally coincident neutrino candidates, we calculated the source fluence that on average would produce 2.3 detected neutrino candidates. We carried out this analysis as a function of source direction, and independently for Antares and IceCube.

The obtained spectral fluence upper limits as a function of source direction are shown in Fig. 2. We considered a standard source model, as well as a model with a spectral cutoff at high energies: . The latter model is expected for sources with exponential cutoff in the primary proton spectrum 2007JPhCS..60..243K (). This is expected for some galactic sources, and is also adopted here for comparison to previous analyses 2015arXiv151102149A (). For each spectral model, the upper limit shown in each direction of the sky is the more stringent limit provided by one or the other detector. We see in Fig. 2 that the constraint strongly depends on the source direction, and is mostly within  GeV cm. Furthermore, the upper limits by Antares and IceCube constrain different energy ranges in the region of the sky close to the GW candidate. For an power-law source spectrum, of Antares signal neutrinos are in the energy range from 3 TeV to 1 PeV, whereas for IceCube at this southern declination the corresponding energy range is 200 TeV to 100 PeV.

Figure 2: Upper limit on the high-energy neutrino spectral fluence () from GW150914 as a function of source direction, assuming (top) and (bottom) neutrino spectra. The region surrounded by a white line shows the part of the sky in which Antares is more sensitive (close to nadir), while on the rest of the sky, IceCube is more sensitive. For comparison, the 50% CL and 90% CL contours of the GW sky map are also shown.

To characterize the dependence of neutrino spectral fluence limits on source direction, we calculate these limits separately for the two distinct areas in the 90% credible region of the GW skymap. For the larger region farther South (hereafter South region), we find upper limits  GeV cm and  GeV cm for our two spectral models without and with a cutoff, respectively. The error bars define the 90% confidence interval of the upper limit, showing the level of variation within each region. The average values were obtained as geometric averages, which better represent the upper limit values as they are distributed over a wide numerical range. For the smaller region farther North (hereafter North region), we find upper limits  GeV cm and  GeV cm. As expected, we see that the limits are much more constraining for the North region, given the stronger limits at the Northern hemisphere due to IceCube’s greatly improved sensitivity there. Additionally, we see that the 90% confidence intervals for the South region, which is much more likely to contain the real source direction than the North region, are fairly small around the average, with the lower and higher limits only differing by about a factor of 2. The upper limits within this area can be considered essentially uniform. We observe a much greater variation in the North region.

To provide a more detailed picture of our constraints on neutrino emission, we additionally calculated neutrino fluence upper limits for different energy bands. For these limits, we assume within each energy band. We focus on , which is consistent with the most likely source direction, and also with most of the GW sky area’s credible region. For each energy range, we use the limit from the most sensitive detector within that range. The obtained limits are given in Table 2.

Energy range  Limit [GeV cm]
100 GeV 1 TeV 150
1 TeV 10 TeV 18
10 TeV 100 TeV 5.1
100 TeV 1 PeV 5.5
1 PeV 10 PeV 2.8
10 PeV 100 PeV 6.5
100 PeV 1 EeV 28
Table 2: Upper limits on neutrino spectral fluence () from GW150914, separately for different spectral ranges, at . We assume within each energy band.

We now convert our fluence upper limits into a constraint on the total energy emitted in neutrinos by the source. To obtain this constraint, we integrate emission within for each source model. The obtained constraint will vary with respect to source direction as we saw above. It will also depend on the uncertain source distance. To account for these uncertainties, we provide the range of values from the lowest to the highest possible within the 90% confidence intervals with respect to source direction and the 90% credible interval with respect to source distance. For simplicity, we treat the estimated source distance and its uncertainty independent of the source direction. We consider both of the distinct sky regions to provide an inclusive range. For our two spectral models, we obtain the following upper limit on the total energy radiated in neutrinos:

(1)
(2)

with the first and second lines of the equation corresponding to the spectral models without and with cutoff, respectively. For comparison, the total energy radiated in GWs from the source is  erg. This value can also be compared to high-energy emission expected in some scenarios for accreting stellar-mass black holes. For example, typical GRB isotropic-equivalent energies are  erg for long and  erg for short GRBs 2006RPPh…69.2259M (). The total energy radiated in high-energy neutrinos in the case of GRBs can be comparable 2015arXiv151101396M (); 2000PhRvL..85.1362B (); 2013PhRvL.110x1101B (); 2013PhRvL.111m1102M (); 2014PhRvD..89d3012M () or in some cases much greater 2001PhRvL..87q1102M (); 2013PhRvL.111l1102M () than the high-energy electromagnetic emission. There is little reason, however, to expect an associated GRB for a binary black hole merger (see, nevertheless, 2016arXiv160203920C ()).

V Conclusion

The results above represent the first concrete limit on neutrino emission from this GW source type, and the first neutrino follow-up of a significant GW event. With the continued increase of Advanced LIGO-Virgo sensitivities for the next observation periods, and the implied source rate of 2–400 Gpcyr in the comoving frame based on this first detection ratescompanion (), we can expect to detect a significant number of GW sources, allowing for stacked neutrino analyses and significantly improved constraints. Similar analyses for the upcoming observation periods of Advanced LIGO-Virgo will be important to provide constraints on or to detect other joint GW and neutrino sources.

Joint GW and neutrino searches will also be used to improve the efficiency of electromagnetic follow-up observations over GW-only triggers. Given the significantly more accurate direction reconstruction of neutrinos ( deg for track events in IceCube 2014PhRvD..89j2004A (); 2014JInst…9P3009A () and  deg in Antares 2014ApJ…786L…5A ()) compared to GWs ( deg), a joint event candidate provides a greatly reduced sky area for follow-up observatories 2013ApJ…767..124N (). The delay induced by the event filtering and reconstruction after the recorded trigger time is typically 3–5 s for Antares 2015arXiv150801180A (), 20–30 s for IceCube 2015arXiv151005222T (), and for LIGO-Virgo, making data available for rapid analyses.

Acknowledgements.
The authors acknowledge the financial support of the funding agencies: Centre National de la Recherche Scientifique (CNRS), Commissariat à l’énergie atomique et aux énergies alternatives (CEA), Commission Européenne (FEDER fund and Marie Curie Program), Institut Universitaire de France (IUF), IdEx program and UnivEarthS Labex program at Sorbonne Paris Cité (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), Région Île-de-France (DIM-ACAV), Région Alsace (contrat CPER), Région Provence-Alpes-Côte d’Azur, Département du Var and Ville de La Seyne-sur-Mer, France; Bundesministerium für Bildung und Forschung (BMBF), Germany; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Stichting voor Fundamenteel Onderzoek der Materie (FOM), Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO), the Netherlands; Council of the President of the Russian Federation for young scientists and leading scientific schools supporting grants, Russia; National Authority for Scientific Research (ANCS), Romania; Ministerio de Economía y Competitividad (MINECO), Prometeo and Grisolía programs of Generalitat Valenciana and MultiDark, Spain; Agence de l’Oriental and CNRST, Morocco. We also acknowledge the technical support of Ifremer, AIM and Foselev Marine for the sea operation and the CC-IN2P3 for the computing facilities. We acknowledge the support from the following agencies: U.S. National Science Foundation-Office of Polar Programs, U.S. National Science Foundation-Physics Division, University of Wisconsin Alumni Research Foundation, the Grid Laboratory Of Wisconsin (GLOW) grid infrastructure at the University of Wisconsin - Madison, the Open Science Grid (OSG) grid infrastructure; U.S. Department of Energy, and National Energy Research Scientific Computing Center, the Louisiana Optical Network Initiative (LONI) grid computing resources; Natural Sciences and Engineering Research Council of Canada, WestGrid and Compute/Calcul Canada; Swedish Research Council, Swedish Polar Research Secretariat, Swedish National Infrastructure for Computing (SNIC), and Knut and Alice Wallenberg Foundation, Sweden; German Ministry for Education and Research (BMBF), Deutsche Forschungsgemeinschaft (DFG), Helmholtz Alliance for Astroparticle Physics (HAP), Research Department of Plasmas with Complex Interactions (Bochum), Germany; Fund for Scientific Research (FNRS-FWO), FWO Odysseus programme, Flanders Institute to encourage scientific and technological research in industry (IWT), Belgian Federal Science Policy Office (Belspo); University of Oxford, United Kingdom; Marsden Fund, New Zealand; Australian Research Council; Japan Society for Promotion of Science (JSPS); the Swiss National Science Foundation (SNSF), Switzerland; National Research Foundation of Korea (NRF); Danish National Research Foundation, Denmark (DNRF) The authors gratefully acknowledge the support of the United States National Science Foundation (NSF) for the construction and operation of the LIGO Laboratory and Advanced LIGO as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, the Max-Planck-Society (MPS), and the State of Niedersachsen/Germany for support of the construction of Advanced LIGO and construction and operation of the GEO600 detector. Additional support for Advanced LIGO was provided by the Australian Research Council. The authors gratefully acknowledge the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS) and the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, for the construction and operation of the Virgo detector and the creation and support of the EGO consortium. The authors also gratefully acknowledge research support from these agencies as well as by the Council of Scientific and Industrial Research of India, Department of Science and Technology, India, Science & Engineering Research Board (SERB), India, Ministry of Human Resource Development, India, the Spanish Ministerio de Economía y Competitividad, the Conselleria d’Economia i Competitivitat and Conselleria d’Educació, Cultura i Universitats of the Govern de les Illes Balears, the National Science Centre of Poland, the European Commission, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, the Hungarian Scientific Research Fund (OTKA), the Lyon Institute of Origins (LIO), the National Research Foundation of Korea, Industry Canada and the Province of Ontario through the Ministry of Economic Development and Innovation, the Natural Science and Engineering Research Council Canada, Canadian Institute for Advanced Research, the Brazilian Ministry of Science, Technology, and Innovation, Russian Foundation for Basic Research, the Leverhulme Trust, the Research Corporation, Ministry of Science and Technology (MOST), Taiwan and the Kavli Foundation. The authors gratefully acknowledge the support of the NSF, STFC, MPS, INFN, CNRS and the State of Niedersachsen/Germany for provision of computational resources. This article has LIGO document number LIGO-P1500271.

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Authors

The Antares Collaboration

Earthquake Research Institute, University of Tokyo, Bunkyo, Tokyo 113-0032, Japan NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

The IceCube Collaboration

LIGO Scientific Collaboration and Virgo Collaboration

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