Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-12-09
Astropart.Phys. 11 (1999) 113-115
Astronomy and Astrophysics
Astrophysics
to appear in Proceedings of VERITAS Workshop on TeV Astrophysics of Extragalactic Sources, eds. M. Catanese, J. Quinn, T. Week
Scientific paper
10.1016/S0927-6505(99)00034-1
In the cosmological blast-wave model for gamma ray bursts (GRBs), high energy (> 10 GeV) gamma-rays are produced either through Compton scattering of soft photons by ultrarelativistic electrons, or as a consequence of the acceleration of protons to ultrahigh energies. We describe the spectral and temporal characteristics of high energy gamma-rays produced by both mechanisms, and discuss how these processes can be distinguished through observations with low-threshold Cherenkov telescopes or GLAST. We propose that Compton scattering of starlight photons by blast wave electrons can produce delayed flares of GeV -- TeV radiation.
Boettcher Markus
Dermer Carles D.
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