Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-12-15
Astronomy and Astrophysics
Astrophysics
6 pages, 1 figure, To appear in proceedings for IAU Symposium 194: Activity in Galaxies, Byurakan, Armenia
Scientific paper
The formation of supermassive black holes through the gravitational collapse of supermassive objects ($M \ga 10^4 M_\odot$) has been proposed as a source of cosmological gamma-ray bursts. The major advantage of this model is that such collapses are far more energetic than stellar-remnant mergers. The major drawback of this idea is the severe baryon loading problem in one-dimensional models. We can show that the observed log N - log P (number vs. peak flux) distribution for gamma-ray bursts in the BATSE database is not inconsistent with an identification of supermassive object collapse as the origin of the gamma-ray bursts. This conclusion is valid for a range of plausible cosmological and gamma-ray burst spectral parameters.
Abazajian Kevork
Fuller George M.
Shi Xiangdong
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