Hawking radiation of Kerr-Newman-de Sitter black hole

Details Hawking radiation of Kerr-Newman-de Sitter black hole Hawking radiation of Kerr-Newman-de Sitter black hole

2009-06-19

arxiv.org/abs/0906.3680v1

Eur.Phys.J.C63:133-138,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages

Scientific paper

10.1140/epjc/s10052-009-1085-0

We extend the classical Damour-Ruffini method and discuss Hawking radiation in Kerr-Newman-de Sitter(KNdS) black hole. Under the condition that the total energy, angular momentum and charge of spacetime are conserved, taking the reaction of the radiation of the particle to the spacetime and the relation between the black hole event horizon and the cosmological horizon into consideration, we derive the black hole radiation spectrum. The radiation spectrum is no longer a pure thermal one. It is related to the change of the Bekenstein-Hawking entropy corresponding the black hole event horizon and the cosmological horizon. It is consistent with an underlying unitary theory.

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