Results 71 to 80 of about 249,956 (357)
Very-high-energy Gamma-Ray Afterglows of GRB 201015A and GRB 201216C
The Astrophysical Journal, 2023 Gamma-ray bursts (GRBs) 201015A and 201216C are valuable cases where very-high-energy (VHE) gamma-ray afterglows have been detected. By analyzing their prompt emission data, we find that GRB 201216C is an extremely energetic, long GRB with a hard gamma ...
Lu-Lu Zhang +3 more
doaj +1 more source
Construction of the Variability -> Luminosity Estimator [PDF]
, 2001 We present a possible Cepheid-like luminosity estimator for the long-duration gamma-ray bursts based on the variability of their light curves.Comment: To appear in Procs.
Lamb, Donald Q., Reichart, Daniel E.
core +2 more sources
A revised analysis of gamma-ray bursts’ prompt efficiencies [PDF]
, 2016 The prompt Gamma-Ray Bursts' (GRBs) efficiency is an important clue on the emission mechanism producing the $\gamma$-rays. Previous estimates of the kinetic energy of the blast waves, based on the X-ray afterglow luminosity $L_X$, suggested that this ...
P. Beniamini, L. Nava, T. Piran
semanticscholar +1 more source
The Astrophysical Journal Letters, 2023 GRB 230307A is one of the brightest gamma-ray bursts detected so far. With the excellent observation of GRB 230307A by the Fermi Gamma-ray Burst Monitor, we can reveal the details of prompt emission evolution.
Yun Wang +4 more
doaj +1 more source
Compton Dragged Gamma--Ray Bursts associated with Supernovae [PDF]
, 1999 It is proposed that the gamma-ray photons that characterize the prompt emission of Gamma-Ray Bursts are produced through the Compton drag process, caused by the interaction of a relativistic fireball with a very dense soft photon bath.
Annalisa Celotti +5 more
core +2 more sources
A FUNDAMENTAL PLANE FOR LONG GAMMA-RAY BURSTS WITH X-RAY PLATEAUS [PDF]
, 2016 A class of long gamma-ray bursts (GRBs) presenting light curves with an extended plateau phase in their X-ray afterglows obeys a correlation between the rest-frame end-time of the plateau, Ta, and its corresponding X-ray luminosity, La, (Dainotti et al).
M. Dainotti +3 more
semanticscholar +1 more source
GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst
The Astrophysical Journal Letters, 2023 We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image, and Neutron Star Interior Composition Explorer Mission.
Maia A. Williams +55 more
doaj +1 more source
The origin of the optical flashes: The case study of GRB 080319B and GRB 130427A [PDF]
, 2018 Correlations between optical flashes and gamma-ray emissions in gamma-ray bursts have been searched in order to clarify the question whether these emissions occur at internal and/or external shocks.
Fraija, N., Veres, P.
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