Black hole physics in globally hyperbolic space-times

Joshi, P. S. ; Narlikar, J. V. (1982) Black hole physics in globally hyperbolic space-times Pramana - Journal of Physics, 18 (5). pp. 385-396. ISSN 0304-4289

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The usual definition of a black hole is modified to make it applicable in a globally hyperbolic space-time. It is shown that in a closed globally hyperbolic universe the surface area of a black hole must eventually decrease. The implications of this breakdown of the black hole area theorem are discussed in the context of thermodynamics and cosmology. A modified definition of surface gravity is also given for non-stationary universes. The limitations of these concepts are illustrated by the explicit example of the Kerr-Vaidya metric.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Black Holes; General Relativity; Cosmology
ID Code:41237
Deposited On:27 May 2011 09:35
Last Modified:17 May 2016 23:02

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