Results 31 to 40 of about 249,931 (264)
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
Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae [PDF]
, 2008 Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow light curves that appear to have a supernova component.
Bloom +9 more
core +3 more sources
Structured Jets and X-Ray Plateaus in Gamma-Ray Burst Phenomena [PDF]
Astrophysical Journal, 2019 The first multi-messenger detection of a binary neutron star merger, GW170817, brought to the forefront the structured jet model as a way to explain multiwavelength observations taken more than a year after the event. Here, we show that the high-latitude
G. Oganesyan +5 more
semanticscholar +1 more source
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 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
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
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
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
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
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