A detailed recalculation of the spectrum of radiation emitted during gravitational collapse of a spherically symmetric star

Details A detailed recalculation of the spectrum of radiation emitted during gravitational collapse of a spherically symmetric star A detailed recalculation of the spectrum of radiation emitted during gravitational collapse of a spherically symmetric star

2004-06-18

arxiv.org/abs/gr-qc/0406074v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 figures

Scientific paper

We address the question of radiation emitted from a collapsing star. We
consider the simple model of a spherical star consisting of pressure-free dust
and we derive the emission spectrum via a systematic asymptotic expansion of
the complete Bogolubov amplitude. We present a review of standard features of
the problem and we point out certain inconsistencies in previous derivations.

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