Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-05-09
Phys.Rev.Lett. 78 (1997) 4328-4331
Astronomy and Astrophysics
Astrophysics
Accepted for publication in The Physical Review Letters. 4 pages, RevTeX needed, no figures
Scientific paper
10.1103/PhysRevLett.78.4328
Gamma-ray bursts are produced by the dissipation of the kinetic energy of a highly relativistic fireball, via the formation of a collisionless shock. When this happens, Ultra High Energy Cosmic Rays up to 10^20 eV are produced. I show in this paper that these particles produce, via synchrotron emission as they cross the acceleration region, photons up to 300 GeV which carry away a small, ~0.01, but non-negligible fraction of the total burst energy. I show that, when the shock occurs with the interstellar medium, the optical depth to photon-photon scattering, which might cause energy degradation of the photons, is small. The burst thusly produced would be detected at Earth simultaneoulsy with the parent gamma-ray burst, although its duration may differ significantly from that of the lower energy photons. The expected fluences, ~10^{-5}-10^{-6} erg/cm^2 are well within the range of planned detectors. A new explanation for the exceptional burst GRB 940217 is discussed.
No associations
LandOfFree
GeV Photons from Ultra High Energy Cosmic Rays accelerated in Gamma Ray Bursts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GeV Photons from Ultra High Energy Cosmic Rays accelerated in Gamma Ray Bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GeV Photons from Ultra High Energy Cosmic Rays accelerated in Gamma Ray Bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-657363