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Jun 26, 2017

We gather and recapitulate our results from the previous sections. Recall that in Paper I, the 4PN Fokker Lagrangian constructed in harmonic coordinates initially depended on the arbitrary constant parameter

Dimensional regularization of the IR divergences in the Fokker action…

The Fokker action of point-particle binaries at the fourth post-Newtonian (4PN) approximation of general relativity has been determined previously. H…
Jan 20, 2011
By hascoet

To test the robustness of the proposed scenario, we performed a set of simulations, where several hundreds of synthetic bursts were generated with different realizations of the initial distribution of the Lorentz factor, assuming that it varies on a…

Origin of the bright prompt optical emission in the naked eye burst

The huge optical brightness of GRB 080319B (the "Naked Eye Burst) makes this event really challenging for models of the prompt GRB emission. In the f…
Dec 03, 2015
By hartwig

Exploring the nature of the Lyman-$α$ emitter CR7

CR7 is the brightest Lyman-$\alpha$ emitter observed at $z>6$, which shows very strong Lyman-$\alpha$ and HeII 1640\AA\ line luminosities, but no met…
Dec 07, 2012
By gam

MAMPOSSt: Modelling Anisotropy and Mass Profiles of Observed Spherica…

Mass modelling of spherical systems through internal motions is hampered by the mass/velocity anisotropy (VA) degeneracy inherent in the Jeans equati…
Nov 13, 2015

Diffusion of dark matter in a hot and dense nuclear environment

We calculate the mean free path in a hot and dense nuclear environment for a fermionic dark matter particle candidate in the $\sim$GeV mass range int…
May 22, 2008
By atek

On the Detectability of Lyman-alpha Emission in Star-forming Galaxies…

Lyman-alpha is now widely used to investigate the galaxy formation and evolution in the high redshift universe. However, without a rigorous understan…
Nov 20, 2013
By paris

The Sloan Digital Sky Survey quasar catalog: tenth data release

We present the Data Release 10 Quasar (DR10Q) catalog from the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey III. Th…
Jan 25, 2017
Popular Physics

Gravitational waves 100 years after Einstein

The LIGO-VIRGO collaboration has detected directly on Earth the gravitational wave signals generated by the collision and the merger of two massive b…
Aug 06, 2007
By sing

Discovery of a bright eclipsing cataclysmic variable

We report on the discovery of J0644+3344, a bright deeply eclipsing cataclysmic variable (CV) binary. Spectral signatures of both binary components a…
Dec 29, 2010
By alfred

The upper atmosphere of the exoplanet HD209458b revealed by the sodiu…

A complete reassessment of the HST observations of the transits of the extrasolar planet HD209458b has provided a transmission spectrum of the atmosp…
Oct 02, 2008

Phase-space structures I: A comparison of 6D density estimators

This paper reviews and analyses methods used to identify neighbours in 6D space and estimate the corresponding phase-space density. It compares SPH m…
Jul 20, 2007
By sousbie

The three dimensional skeleton: tracing the filamentary structure of …

The skeleton formalism aims at extracting and quantifying the filamentary structure of the universe is generalized to 3D density fields; a numerical …
Dec 21, 2015
By guojh

The influence of the Extreme Ultraviolet spectral energy distribution…

By varying the profiles of stellar extreme ultraviolet (EUV) spectral energy distribution (SED), we tested the influences of stellar EUV SEDs on the …
Oct 20, 2017
By steer

Y-junction intercommutations of current carrying strings

Under certain conditions the collision and intercommutation of two cosmic strings can result in the formation of a third string, with the three strin…
Aug 27, 2013
By lemoine

Constraints on the source of ultra-high energy cosmic rays using an…

The joint analysis of anisotropy signals and chemical composition of ultra-high energy cosmic rays offers strong potential for shedding light on the …
Feb 20, 2015
By jmartin

The Observational Status of Cosmic Inflation after Planck

The observational status of inflation after the Planck 2013 and 2015 results and the BICEP2/Keck Array and Planck joint analysis is discussed. These …
Nov 20, 2018

Synthetic nebular emission from massive galaxies II: ultraviolet-line…

We compute synthetic optical and ultraviolet (UV) emission-line properties of galaxies in a full cosmological framework by coupling, in post-processi…
Mar 30, 2018

Hamiltonian vs stability and application to Horndeski theory

A Hamiltonian density bounded from below implies that the lowest-energy state is stable. We point out, contrary to common lore, that an unbounded Ham…
Mar 08, 2018

Bondi or not Bondi: the impact of resolution on accretion and drag fo…

Whilst in galaxy-size simulations, supermassive black holes (SMBH) are entirely handled by sub-grid algorithms, computational power now allows the ac…
Dec 17, 2007

The Nitrogen and Oxygen abundances in the neutral gas at high redshift

We study the Oxygen and Nitrogen abundances in the interstellar medium of high-redshift galaxies. We use high resolution and high signal-to-noise rat…
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