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Nov 28, 2012

An Independent Measurement of the Incidence of MgII Absorbers along …

In 2006, Prochter et al. reported a statistically significant enhancement of very strong Mg II absorption systems intervening the sightlines to gamma…
May 18, 2012

Medium modification of the charged current neutrino opacity and its …

Previous work on neutrino emission from proto-neutron stars which employed full solutions of the Boltzmann equation showed that the average energies …
Aug 11, 2007

Cluster Structure in Cosmological Simulations I: Correlation to Obs…

We use Enzo, a hybrid Eulerian AMR/N-body code including non-gravitational heating and cooling, to explore the morphology of the X-ray gas in cluster…
Feb 18, 2014

Two-Dimensional Simulations of Pulsational Pair-Instability Supernovae

Massive stars that end their lives with helium cores in the range of 35 to 65 Msun are known to produce repeated thermonuclear outbursts due to a rec…
Jan 29, 2014

Stellar Kinematics and Structural Properties of Virgo Cluster Dwarf …

We present evidence for kinematically decoupled cores (KDCs) in two dwarf early-type (dE) galaxies in the Virgo cluster, VCC 1183 and VCC 1453, studi…
Sep 10, 2013

The Most Luminous z~9-10 Galaxy Candidates yet Found: The Luminosity …

[abridged] We present the discovery of four surprisingly bright (H_160 ~ 26 - 27 mag AB) galaxy candidates at z~9-10 in the complete HST CANDELS WFC3…
Aug 19, 2011

The COS-Halos Survey: Keck LRIS and Magellan MagE Optical Spectroscopy

We present high signal-to-noise optical spectra for 67 low-redshift (0.1 < z < 0.4) galaxies that lie within close projected distances (5 kpc < rho <…
Apr 06, 2010

Dusty Disks around White Dwarfs I: Origin of Debris Disks

A significant fraction of the mature FGK stars have cool dusty disks at least an orders of magnitudes brighter than the solar system's outer zodiacal…
Jun 27, 2016
Atmospheric and Oceanic Physics

In Situ and Ex Situ Formation Models of Kepler 11 Planets

We present formation simulations of the six Kepler 11 planets. Models assume either in situ or ex situ assembly, the latter with migration, and are e…
Mar 27, 2011

New Population Synthesis Models of the Cosmic UV Background

We present improved synthesis models of the evolving spectrum of the UV/X-ray diffuse background, updating and extending our previous results. A "min…
Jan 14, 2014

Observations of environmental quenching in groups in the 11 Gyr since…

We present direct observational evidence for star formation quenching in galaxy groups in the redshift range 0<z<2.5. We utilize a large sample of ne…
Oct 28, 2008

The Impact of Feedback on Disk Galaxy Scaling Relations

We use a disk galaxy evolution model to investigate the impact of mass outflows (a.k.a. feedback) on disk galaxy scaling relations. Our model follows…
Feb 13, 2013

Galaxy environments over cosmic time: the non-evolving radial galaxy …

We present a statistical study of the environments of massive galaxies in four redshift bins between z=0.04 and z=1.6, using data from the Sloan Digi…
Sep 12, 2007

Thermal Waves in Irradiated Protoplanetary Disks

Protoplanetary disks are mainly heated by radiation from the central star. Since the incident stellar flux at any radius is sensitive to the disk str…
Oct 21, 2010

The Early Evolution of Primordial Pair-Instability Supernovae

The observational signatures of the first cosmic explosions and their chemical imprint on second-generation stars both crucially depend on how heavy …
Aug 20, 2008

Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and…

We study the potential of GLAST to unveil particle dark matter properties with gamma-ray observations of the Galactic center region. We present full …
Mar 13, 2012

Radiation-Hydrodynamic Simulations of the Formation of Orion-Like Sta…

[abridged] We report a series of simulations of the formation of a star cluster similar to the Orion Nebula Cluster (ONC), including both radiative t…
Jun 21, 2010

Keck ESI Observations of Metal-Poor Damped Lyman-α Systems

We present the first results from a survey of SDSS quasars selected for strong H I damped Lyman-{\alpha} (DLA) absorption with corresponding low equi…
Sep 14, 2016

Discovery of an Enormous Ly$α$ nebula in a massive galaxy overdensi…

Enormous Ly$\alpha$ Nebulae (ELANe), unique tracers of galaxy density peaks, are predicted to lie at the nodes and intersections of cosmic filamentar…
Oct 09, 2009

Type II Supernovae: Model Light Curves and Standard Candle Relationsh…

A survey of Type II supernovae explosion models has been carried out to determine how their light curves and spectra vary with their mass, metallicit…
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