Recalculation of the spectrum of radiation emitted during gravitational collapse
arXiv:gr-qc/0406075 · doi:10.1016/j.physleta.2004.06.045
Abstract
We recalculate the spectrum 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 thermal spectrum via a systematic asymptotic expansion of the complete Bogolubov amplitude. Inconsistencies in previous derivations are pointed out.
to be published in Physics Letters A