Results 21 to 30 of about 213,100 (298)
The optical afterglow of the short gamma-ray burst associated with GW170817 [PDF]
Nature Astronomy, 2018 The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves1,2. The electromagnetic signal began approximately two seconds post-merger with a weak, short burst of gamma rays3, which
J. Lyman +38 more
semanticscholar +1 more source
Gamma-Ray Burst Afterglows in the Multimessenger Era: Numerical Models and Closure Relations [PDF]
Astrophysical Journal, 2019 Gamma-ray bursts (GRBs) associated with gravitational wave events are, and will likely continue to be, viewed at a larger inclination than GRBs without gravitational wave detections.
G. Ryan, H. V. Eerten, L. Piro, E. Troja
semanticscholar +1 more source
Gamma-ray Vortex Burst in Nonlinear Thomson Scattering with Refocusing Spiral Plasma Mirror
Ultrafast Science, 2023 The gamma-ray vortex burst in the nonlinear Thomson scattering when the laser wakefield accelerated electron bunch collides with an ultra-intense Laguerre–Gaussian laser that was reflected from the refocusing spiral plasma mirror.
Weijun Zhou +3 more
doaj +1 more source
GECAM Localization of High-energy Transients and the Systematic Error
The Astrophysical Journal Supplement Series, 2023 The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts of ...
Yi Zhao +65 more
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GAMMA RAY BURST FOLLOW-UPS WITH BOOTES
Odessa Astronomical Publications, 2014 The Burst Observer and Optical Transient Exploring System (BOOTES), is a global robotic observatory network, which started in 1998 with Spanish leadership devoted to study optical emissions from gamma ray bursts (GRBs) that occur in the Universe.
Sergey Guziy +16 more
doaj +1 more source
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
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
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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
THE THIRD FERMI GBM GAMMA-RAY BURST CATALOG: THE FIRST SIX YEARS [PDF]
, 2016 Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two γ-ray bursts (GRBs) every three days.
P. N. Bhat +32 more
semanticscholar +1 more source
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
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