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arXiv · gr-qc/0002018

Radiation flux and spectrum in the Vaidya collapse model

T. P. Singh·Cenalo Vaz
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Abstract

We consider the quantization of a massless scalar field, using the geometric optics approximation, in the background spacetime of a collapsing spherical self-similar Vaidya star, which forms a black hole or a naked singularity. We show that the outgoing radiation flux of the quantized scalar field diverges on the Cauchy horizon. The spectrum of the produced scalar partcles is non-thermal when the background develops a naked singularity. These results are analogous to those obtained for the scalar quantization on a self-similar dust cloud.

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T. P. Singh, Cenalo Vaz. 2000-02-03. Radiation flux and spectrum in the Vaidya collapse model. https://doi.org/10.1016/s0370-2693(00)00416-0

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