Results 31 to 40 of about 249,956 (357)
Gamma-Ray Burst Afterglows [PDF]
▪ Abstract The discovery of counterparts in X-ray and optical to radio wavelengths has revolutionized the study of γ-ray bursts, until recently the most enigmatic of astrophysical phenomena. We now know that γ-ray bursts are the biggest explosions in nature, caused by the ejection of ultrarelativistic matter from a powerful energy source and its ...
van Paradijs, J.A. +2 more
openaire +2 more sources
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
COMPTEL observations of cosmic gamma‐ray bursts [PDF]
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
Prompt Emission Polarimetry of Gamma-Ray Bursts with the AstroSat CZT Imager [PDF]
X-ray and gamma-ray polarization measurements of the prompt emission of gamma-ray bursts (GRBs) are believed to be extremely important for testing various models of GRBs.
T. Chattopadhyay +12 more
semanticscholar +1 more source
Gamma-ray burst cosmology [PDF]
21 pages, 24 figures, Accepted for publication by New Astronomy ...
Wang, F. Y., Dai, Z. G., Liang, E. W.
openaire +2 more sources
Black Hole Accretion in Gamma Ray Bursts
We study the structure and evolution of the hyperaccreting disks and outflows in the gamma ray bursts central engines. The torus around a stellar mass black hole is composed of free nucleons, Helium, electron-positron pairs, and is cooled by neutrino ...
Agnieszka Janiuk +3 more
doaj +1 more source
Relativistic Conic Beams and Spatial Distribution of Gamma-Ray Bursts [PDF]
We study the statistics of gamma-ray bursts, assuming that gamma-ray bursts are cosmological and they are beamed in the form of a conical jet with a large bulk Lorentz factor $\sim 100$.
Heon‐Young Chang, Insu Yi, Renaud N.
core +6 more sources
Jets in a Gamma-Ray Burst during Its Prompt Emission: Evolution of the Lorentz Factor
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
doaj +1 more source
Cosmic Ray and Neutrino Emission from Gamma-Ray Bursts with a Nuclear Cascade [PDF]
We discuss neutrino and cosmic-ray emission from Gamma-Ray Bursts (GRBs) with the injection of nuclei, where we take into account that a nuclear cascade from photo-disintegration can fully develop in the source.
D. Biehl +3 more
semanticscholar +1 more source
LOCALIZATION OF GAMMA-RAY BURSTS USING THE FERMI GAMMA-RAY BURST MONITOR [PDF]
The Fermi Gamma-ray Burst Monitor (GBM) has detected over 1400 Gamma-Ray Bursts (GRBs) since it began science operations in July, 2008. We use a subset of over 300 GRBs localized by instruments such as Swift, the Fermi Large Area Telescope, INTEGRAL, and MAXI, or through triangulations from the InterPlanetary Network (IPN), to analyze the accuracy of ...
V. Connaughton +27 more
openaire +5 more sources

