Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..138..491r&link_type=abstract
Astronomy and Astrophysics Supplement, v.138, p.491-497
Astronomy and Astrophysics
Astrophysics
28
Gamma-Rays: Bursts
Scientific paper
There is now a consensus that gamma-ray bursts involve extraordinary power outputs, and highly relativistic dynamics. The trigger is probably a binary merger or collapse involving compact objects. The most plausible progenitors, ranging from NS-NS mergers to various hypernova-like scenarios, eventually lead to the formation of a black hole with a debris torus around it, the extractable energy being up to 10(54) ergs. The various modes of energy extraction from such systems are discussed. Some key theoretical issues are highlighted, along with the types of observation that would discriminate among the various models.
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