Are Gamma-Ray Bursts Signals of Supermassive Black Hole Formation?
Kevork Abazajian, George M. Fuller, Xiangdong Shi
Abstract
The formation of supermassive black holes through the gravitational collapse of supermassive objects (M 104 M) 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.
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