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

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34971We 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.3 figuresGeneral Relativity and Quantum CosmologyA detailed recalculation of the spectrum of radiation emitted during gravitational collapse of a spherically symmetric startext