Results 31 to 40 of about 68,672 (267)

Small-Angle Scattering of X-Rays from Extragalactic Sources by Dust in Intervening Galaxies [PDF]

open access: yes, 1998
Gamma-ray bursts are now known to be a cosmological population of objects, which are often accompanied by X-ray and optical afterglows. The total energy emitted in the afterglow can be similar to the energy radiated in the gamma-ray burst itself.
Jordi Miralda‐Escude   +4 more
core   +2 more sources

Gamma-Ray Burst Prompt Correlations

open access: yesAdvances in Astronomy, 2018
The mechanism responsible for the prompt emission of gamma-ray bursts (GRBs) is still a debated issue. The prompt phase-related GRB correlations can allow discriminating among the most plausible theoretical models explaining this emission.
M. G. Dainotti   +2 more
doaj   +1 more source

CLOAKED GAMMA-RAY BURSTS [PDF]

open access: yesThe Astrophysical Journal, 2014
accepted for publication in the Astrophysical ...
openaire   +2 more sources

Gamma-Ray Burst Energetics [PDF]

open access: yesThe Astrophysical Journal, 1999
We estimate the fraction of the total energy in a Gamma-Ray Burst (GRB) that is radiated in photons during the main burst. Random internal collisions among different shells limit the efficiency for converting bulk kinetic energy to photons. About 1% of the energy of explosion is converted to radiation, in 10-1000 kev energy band in the observer frame ...
openaire   +2 more sources

Light speed variation from gamma ray burst GRB 160509A

open access: yesPhysics Letters B, 2016
It is postulated in Einstein's relativity that the speed of light in vacuum is a constant for all observers. However, the effect of quantum gravity could bring an energy dependence of light speed.
Haowei Xu, Bo-Qiang Ma
doaj   +1 more source

Present and future gamma-ray burst experiments [PDF]

open access: yes, 1998
Gamma-ray burst counterpart studies require small, prompt error boxes. Today, there are several missions which can provide them: BeppoSAX, the Rossi X-Ray Timing Explorer, and the 3rd Interplanetary Network.
Hurley, K.
core   +2 more sources

Afterglows as Diagnostics of Gamma Ray Burst Beaming [PDF]

open access: yes, 1997
If gamma ray bursts are highly collimated, radiating into only a small fraction of the sky, the energy requirements of each event may be reduced by several (up to 4 - 6) orders of magnitude, and the event rate increased correspondingly. The large Lorentz
Rhoads, James E.
core   +3 more sources

Polarized Emission from Gamma-Ray Burst Jets

open access: yesGalaxies, 2017
I review how polarization signals have been discussed in the research field of Gamma-Ray Bursts (GRBs). I mainly discuss two subjects in which polarimetry enables us to study the nature of relativistic jets.
Shiho Kobayashi
doaj   +1 more source

Swift Pointing and Gravitational-Wave Bursts from Gamma-Ray Burst Events

open access: yes, 2003
The currently accepted model for gamma-ray burst phenomena involves the violent formation of a rapidly rotating solar-mass black hole. Gravitational waves should be associated with the black-hole formation, and their detection would permit this model to ...
Finn, Lee Samuel   +2 more
core   +1 more source

X-ray afterglow detection of the short gamma-ray burst 991014 [PDF]

open access: yes, 2000
GRB 991014 is one of the shortest gamma-ray bursts detected so far with the Wide Field Cameras aboard BeppoSAX, both in gamma-rays and X-rays. The duration is 9.6 sec in 2-28 keV and 3.2 sec in 40 to 700 keV (as measured between the times when 5 and 95 ...
A. Coletta   +18 more
core   +3 more sources

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