The Hawking temperature of expanding cosmological black holes
arXiv:0710.2122 · doi:10.1103/PhysRevD.76.104042
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/(8Ïm(t)). This expression holds for comoving black holes and agrees with a recent proposal by Saida, Harada, and Maeda.
5 latex pages, to appear in Phys. Rev. D. Some references added