The Hawking temperature of expanding cosmological black holes
General Relativity and Quantum Cosmology
2008-11-26 v2
Abstract
In the context of a debate on the correct expression of the Hawking temperature of an expanding cosmological black hole, we show that the correct expression in terms of the Hawking-Hayward quasi-local energy m of the hole is T=1/(8\pi m(t)). This expression holds for comoving black holes and agrees with a recent proposal by Saida, Harada, and Maeda.
Keywords
Cite
@article{arxiv.0710.2122,
title = {The Hawking temperature of expanding cosmological black holes},
author = {Valerio Faraoni},
journal= {arXiv preprint arXiv:0710.2122},
year = {2008}
}
Comments
5 latex pages, to appear in Phys. Rev. D. Some references added