Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-12-02
Astronomy and Astrophysics
Astrophysics
Review talk at IAU Symposium 214 ``High energy processes and phenomena in astrophysics'', 6-10 August, 2002, Suzhou. To appear
Scientific paper
Extensive observational campaigns of afterglow hunting have greatly enriched our understanding of the gamma-ray burst (GRB) phenomenon. Efforts have been made recently to explore some afterglow properties or signatures that will be tested by the on-going or the future observational campaigns yet come. These include the properties of GRB early afterglows in the temporal domain; the GeV-TeV afterglow signatures in the spectral domain; as well as a global view about the GRB universal structured jet configuration. These recent efforts are reviewed. Within the standard cosmological fireball model, the very model(s) responsible for the GRB prompt emission is (are) not identified. These models are critically reviewed and confronted with the current data.
Meszaros Peter
Wang Junfeng
Zhang Bing
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