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  The inner Cauchy horizon of axisymmetric and stationary black holes with surrounding matter

Ansorg, M., & Hennig, J. (2008). The inner Cauchy horizon of axisymmetric and stationary black holes with surrounding matter. Classical and quantum gravity, 25(22): 222001. doi:10.1088/0264-9381/25/22/222001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6DA1-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-808C-D
Genre: Journal Article

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cqg8_22_222001.pdf (Publisher version), 155KB
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 Creators:
Ansorg, Marcus1, Author
Hennig, Jörg2, Author
Affiliations:
1AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, escidoc:24008              
2MPI for Gravitational Physics, Max Planck Society, Golm, DE, escidoc:24007              

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Free keywords: gr-qc
 Abstract: We investigate the interior of regular axisymmetric and stationary black holes surrounded by matter and find that for non-vanishing angular momentum of the black hole the spacetime can always be extended regularly up to and including an inner Cauchy horizon. We provide an explicit relation for the regular metric at the inner Cauchy horizon in terms of that at the event horizon. As a consequence, we obtain the universal equality (8πJ)2 = A+A− where J is the black hole's angular momentum and A− and A+ denote the horizon areas of inner Cauchy and event horizons, respectively. We also find that in the limit J → 0 the inner Cauchy horizon becomes singular.

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 Dates: 2008-11-212008
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1088/0264-9381/25/22/222001
arXiv: 0810.3998
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 25 (22) Sequence Number: 222001 Start / End Page: - Identifier: ISSN: 0264-9381