Results 51 to 60 of about 257,446 (367)
The Observer's Guide to the Gamma-Ray Burst-Supernova Connection [PDF]
, 2016 We present a detailed report of the connection between long-duration gamma-ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained ...
Z. Cano +3 more
semanticscholar +1 more source
Observations of GRB 990123 by the Compton Gamma-Ray Observatory [PDF]
, 1999 GRB 990123 was the first burst from which simultaneous optical, X-ray and gamma-ray emission was detected; its afterglow has been followed by an extensive set of radio, optical and X-ray observations.
A. Connors +22 more
core +3 more sources
In vacuo dispersion features for gamma-ray-burst neutrinos and photons [PDF]
Nature Astronomy, 2016 Over the past 15 years there has been considerable interest in the possibility of quantum-gravity-induced in vacuo dispersion, the possibility that spacetime itself might behave essentially like a dispersive medium for particle propagation.
G. Amelino-Camelia +3 more
semanticscholar +1 more source
Are there MeV gamma-ray bursts? [PDF]
AIP Conference Proceedings, 1996 It is often stated that gamma-ray bursts (GRBs) have typical energies of several hundred keV. Is this a real feature of GRBs or is it due to an observational bias? We consider the possibility that bursts of a given bolometric luminosity occur with a hardness distribution $p(H)d \log H \propto H^ d \log H$. We model the detection efficiency of BATSE as
Tsvi Piran, Ramesh Narayan
openaire +4 more sources
Small-Angle Scattering of X-Rays from Extragalactic Sources by Dust in Intervening Galaxies [PDF]
, 1998 Gamma-ray bursts are now known to be a cosmological population of objects, which are often accompanied by X-ray and optical afterglows. The total energy emitted in the afterglow can be similar to the energy radiated in the gamma-ray burst itself.
Jordi Miralda‐Escude +4 more
core +2 more sources
Light speed variation from gamma ray burst GRB 160509A
Physics Letters B, 2016 It is postulated in Einstein's relativity that the speed of light in vacuum is a constant for all observers. However, the effect of quantum gravity could bring an energy dependence of light speed.
Haowei Xu, Bo-Qiang Ma
doaj +1 more source
Probing intrinsic properties of short gamma-ray bursts with gravitational waves [PDF]
, 2017 Progenitors of short gamma-ray bursts are thought to be neutron stars coalescing with their companion black hole or neutron star, which are one of the main gravitational wave sources. We have devised a Bayesian framework for combining gamma-ray burst and
Fan, Xilong +2 more
core +2 more sources
The Fermi GBM gamma-ray burst time-resolved spectral catalog: brightest bursts in the first four years [PDF]
, 2016 We aim to obtain high-quality time-resolved spectral fits of gamma-ray bursts (GRBs) observed by the Gamma-ray Burst Monitor (GBM) on board the Fermi Gamma-ray Space Telescope.
Hoi-Fung Yu +19 more
semanticscholar +1 more source
New Astronomy, 2000 32 pages, 8 figures, accepted for publication in New ...
Brown, G.E. +5 more
openaire +5 more sources
Afterglows as Diagnostics of Gamma Ray Burst Beaming [PDF]
, 1997 If gamma ray bursts are highly collimated, radiating into only a small fraction of the sky, the energy requirements of each event may be reduced by several (up to 4 - 6) orders of magnitude, and the event rate increased correspondingly. The large Lorentz
Rhoads, James E.
core +3 more sources