High energy gamma-ray emission from Gamma-Ray Bursts -- before GLAST
arXiv:0805.2221 · doi:10.1007/s11467-008-0033-z
Abstract
Gamma-ray bursts (GRBs) are short and intense emission of soft gamma-rays, which have fascinated astronomers and astrophysicists since their unexpected discovery in 1960s. The X-ray/optical/radio afterglow observations confirm the cosmological origin of GRBs, support the fireball model, and imply a long-activity of the central engine. The high energy gamma-ray emission (>20 MeV) from GRBs is particularly important because they shed some lights on the radiation mechanisms and can help us to constrain the physical processes giving rise to the early afterglows. In this work, we review observational and theoretical studies of the high energy emission from GRBs. Special attention is given to the expected high energy emission signatures accompanying the canonical early-time X-ray afterglow that was observed by the Swift X-ray Telescope. We also discuss the detection prospect of the upcoming GLAST satellite and the current ground-based Cerenkov detectors.
An invited review article to appear in Front. Phys. China., typos corrected (Possible prompt and very early GeV-TeV emission from GRB 080319B are discussed in Sec. V)
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Cited by in corpus (18)
- The Physics of Gamma-Ray Bursts and Relativistic Jets
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