Radiation flux and spectrum in the Vaidya collapse model
General Relativity and Quantum Cosmology
2009-10-31 v1
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.
Cite
@article{arxiv.gr-qc/0002018,
title = {Radiation flux and spectrum in the Vaidya collapse model},
author = {T. P. Singh and Cenalo Vaz},
journal= {arXiv preprint arXiv:gr-qc/0002018},
year = {2009}
}
Comments
10 pages, Latex File