Results 41 to 50 of about 245,674 (370)

THE COSMIC GAMMA-RAY BURSTS [PDF]

open access: yesThe Ninth Marcel Grossmann Meeting, 2002
Cosmic gamma-ray bursts are one of the great frontiers of astrophysics today. They are a playground of relativists and observers alike. They may teach us about the death of stars and the birth of black holes, the physics in extreme conditions, and help us probe star formation in the distant and obscured universe. In this review we summarise some of the
S. G. Djorgovski   +14 more
openaire   +4 more sources

GRB 221009A with an Unconventional Precursor: A Typical Two-stage Collapsar Scenario?

open access: yesThe Astrophysical Journal, 2023
As the brightest gamma-ray burst (GRB) ever detected, GRB 221009A may offer a chance that reveals some interesting features that are hidden in those bursts that are not so bright.
Xin-Ying Song, Shuang-Nan Zhang
doaj   +1 more source

COMPTEL observations of cosmic gamma‐ray bursts [PDF]

open access: yes, 1991
The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K   +26 more
core   +2 more sources

Early optical observations of seven gamma-ray bursts in comparison to their gamma X-ray characteristics in the MSU MASTER Global Robotic Telescopes Net

open access: yesГеодинамика и тектонофизика, 2019
Seven gamma-ray bursts – GRB 130907A, GRB 140311B, GRB 140129B, GRB 160227A, GRB 120404A, GRB 110801A, and GRB 120811C were observed by the MSU MASTER (Mobile Astronomical System of TElescope Robots) Global Network.
V. M. Lipunov   +31 more
doaj   +1 more source

SHORT GAMMA-RAY BURSTS FROM THE MERGER OF TWO BLACK HOLES [PDF]

open access: yes, 2016
Short gamma-ray bursts (GRBs) are explosions of cosmic origins believed to be associated with the merger of two compact objects, either two neutron stars or a neutron star and a black hole (BH).
R. Perna, D. Lazzati, B. Giacomazzo
semanticscholar   +1 more source

The Diversity of Kilonova Emission in Short Gamma-Ray Bursts [PDF]

open access: yesAstrophysical Journal, 2017
The historic first joint detection of both gravitational-wave and electromagnetic emission from a binary neutron star merger cemented the association between short gamma-ray bursts (SGRBs) and compact object mergers, as well as providing a well-sampled ...
B. Gompertz   +12 more
semanticscholar   +1 more source

MASTER prompt and follow-up GRB observations [PDF]

open access: yes, 2009
There are the results of gamma-ray bursts observations obtained using the MASTER robotic telescope in 2007 - 2009. We observed 20 error-boxes of gamma-ray bursts this period.The limits on their optical brightnesses have been derived.
Alexander Belinski   +17 more
core   +2 more sources

Collapsars: Gamma-Ray Bursts and Explosions in “Failed Supernovae” [PDF]

open access: yes, 1998
Using a two-dimensional hydrodynamics code (PROMETHEUS), we explore the continued evolution of rotating helium stars, Mα ≳ 10 M☉, in which iron-core collapse does not produce a successful outgoing shock but instead forms a black hole of 2-3 M☉. The model
A. MacFadyen, S. Woosley
semanticscholar   +1 more source

MERGERS OF CHARGED BLACK HOLES: GRAVITATIONAL-WAVE EVENTS, SHORT GAMMA-RAY BURSTS, AND FAST RADIO BURSTS [PDF]

open access: yes, 2016
The discoveries of GW150914, GW151226, and LVT151012 suggest that double black hole (BH–BH) mergers are common in the universe. If at least one of the two merging black holes (BHs) carries a certain amount of charge, possibly retained by a rotating ...
Bing Zhang
semanticscholar   +1 more source

Nanolensing of Gamma‐Ray Bursts [PDF]

open access: yesThe Astrophysical Journal, 2003
28 pages, 12 figures, matches version accepted by ApJ (fixed minor error in fold lens mapping)
Mark Walker   +3 more
openaire   +3 more sources

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