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  The inner Cauchy horizon of axisymmetric and stationary black holes with surrounding matter in Einstein-Maxwell theory

Ansorg, M., & Hennig, J. (2009). The inner Cauchy horizon of axisymmetric and stationary black holes with surrounding matter in Einstein-Maxwell theory. Physical Review Letters, 102: 221102. doi:10.1103/PhysRevLett.102.221102.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-460C-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-460D-5
Genre: Journal Article

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PhysRevLett102_221102.pdf (Publisher version), 128KB
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 Creators:
Ansorg, Marcus1, Author
Hennig, Jörg1, Author              
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1Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24012              

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 Abstract: We study the interior electrovacuum region of axisymmetric and stationary black holes with surrounding matter and find that there exists always a regular inner Cauchy horizon inside the black hole, provided the angular momentum J and charge Q of the black hole do not vanish simultaneously. In particular, we derive an explicit relation for the metric on the Cauchy horizon in terms of that on the event horizon. Moreover, our analysis reveals the remarkable universal relation (8\pi J)2+(4\pi Q2)2=A+ A-, where A+ and A- denote the areas of event and Cauchy horizon respectively.

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 Dates: 2009
 Publication Status: Published in print
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 102 Sequence Number: 221102 Start / End Page: - Identifier: -