Results 41 to 50 of about 263,549 (373)
GRB 060218/SN 2006aj: A Gamma-Ray Burst and Prompt Supernova at z=0.0335 [PDF]
, 2006 We report the imaging and spectroscopic localization of GRB 060218 to a low-metallicity dwarf starburst galaxy at z = 0.03345 +/- 0.00006. In addition to making it the second nearest gamma-ray burst known, optical spectroscopy reveals the earliest ...
An, D. +4 more
core +3 more sources
Gamma-Ray Burst Afterglows [PDF]
Annual Review of Astronomy and Astrophysics, 2000 ▪ Abstract The discovery of counterparts in X-ray and optical to radio wavelengths has revolutionized the study of γ-ray bursts, until recently the most enigmatic of astrophysical phenomena. We now know that γ-ray bursts are the biggest explosions in nature, caused by the ejection of ultrarelativistic matter from a powerful energy source and its ...
van Paradijs, J.A. +2 more
openaire +2 more sources
AGILE detection of delayed gamma-ray emission from GRB 080514B [PDF]
, 2008 GRB 080514B is the first gamma ray burst (GRB), since the time of EGRET, for which individual photons of energy above several tens of MeV have been detected with a pair-conversion tracker telescope.
A. Argan +72 more
core +2 more sources
Gamma-Ray Burst Jet Breaks Revisited [PDF]
Astrophysical Journal, 2018 Gamma-ray Burst (GRB) collimation has been inferred with the observations of achromatic steepening in GRB light curves, known as jet breaks. Identifying a jet break from a GRB afterglow light curve allows a measurement of the jet opening angle and true ...
Xiang-Gao Wang +6 more
semanticscholar +1 more source
Observational constraints on the structure of gamma-ray burst jets [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Motivated by GW170817 we examine constraints that observations put on the angular structure of long gamma-ray burst (GRB) jets. First, the relatively narrow observed distribution of $E_{X}/E_{\gamma}$ (the isotropic equivalent early X-ray afterglow to ...
P. Beniamini, E. Nakar
semanticscholar +1 more source
Gamma-ray burst afterglows [PDF]
, 2006 Extended, fading emissions in multi-wavelength are observed following Gamma-ray bursts (GRBs). Recent broad-band observational campaigns led by the Swift Observatory reveal rich features of these GRB afterglows.
Zhang, Bing
core +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
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
A DECADE OF SHORT-DURATION GAMMA-RAY BURST BROADBAND AFTERGLOWS: ENERGETICS, CIRCUMBURST DENSITIES, AND JET OPENING ANGLES [PDF]
, 2015 We present a comprehensive catalog and analysis of broadband afterglow observations for 103 short-duration gamma-ray bursts (GRBs), comprised of all short GRBs from 2004 November to 2015 March with prompt follow-up observations in the X-ray, optical ...
W. Fong +4 more
semanticscholar +1 more source
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