Results 51 to 60 of about 72,034 (329)
Repeating Emission Episodes in Gamma-Ray Bursts: Millilensing or Jet Precession?
The Astrophysical Journal, 2023 Recently, some gamma-ray bursts (GRBs) whose light curves consist of repeating emission episodes with similar temporal profiles have attracted extensive attention.
He Gao +3 more
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Low-Energy Spectral Features in GRBs [PDF]
, 1996 I discuss low-energy lines in gamma-ray bursts. The process of deconvolving gamma-ray spectral data and the steps needed to demonstrate the existence of a line are explained.
Briggs, Michael S.
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UniverseMore than fifty years have elapsed from the first discovery of gamma-ray bursts (GRBs) with American Vela satellites, and more than twenty-five years from the discovery with the BeppoSAX satellite of the first X-ray afterglow of a GRB.
Filippo Frontera
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Black hole neutron star coalescence as a source of gamma-ray bursts [PDF]
, 1997 We present the results of hydrodynamic (SPH) simulations showing the coalescence of a black hole with a neutron star to be a promising theoretical source of short duration gamma-ray bursts.
Kluzniak, W., Lee, W. H.
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Spectral Hardness and Evolution of Swift Gamma-Ray Bursts and X-Ray Afterglows
The Astrophysical Journal, 2023 Spectral hardness of gamma-ray bursts can be characterized by either hardness ratio or peak energy, and the inconsistency of these parameters can reflect spectral diversity and complexity.
X. Y. Du +6 more
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Gamma-ray bursts: Observational overview [PDF]
AIP Conference Proceedings, 1994 Gamma-ray bursts remain one of the greatest mysteries in astrophysics in spite of new and more detailed observations made with the BATSE experiment on the Compton Observatory. The new observation with the greatest impact has been the observed isotropic distribution of bursts along with a deficiency of the weak bursts which would be expected from a ...
openaire +1 more source
Jets in a Gamma-Ray Burst during Its Prompt Emission: Evolution of the Lorentz Factor
The Astrophysical Journal, 2023 Knowledge about the Lorentz factor and its evolution of relativistic jets in gamma-ray bursts (GRBs) is crucial to understand their physics. An exact value of the bulk Lorentz factor can be estimated based on a high-energy spectral cutoff, which may ...
Jing Li +8 more
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Beaming effects in GRBs and orphan afterglows
, 2004 The overall dynamical evolution and radiation mechanism of $\gamma$-ray burst jets are briefly introduced. Various interesting topics concerning beaming in $\gamma$-ray bursts are discussed, including jet structures, orphan afterglows and cylindrical ...
Cheng, K. S., Huang, Y. F., Lu, T.
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Gamma photometric redshifts for long gamma-ray bursts [PDF]
, 2002 It is known that the soft tail of the gamma-ray bursts' spectra show excesses from the exact power-law dependence. In this article we show that this departure can be detected in the peak flux ratios of different BATSE DISCSC energy channels.
A. Mészáros +42 more
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