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          Institute: MPI für Gravitationsphysik     Collection: Geometric Analysis and Gravitation     Display Documents



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ID: 320034.0, MPI für Gravitationsphysik / Geometric Analysis and Gravitation
A universal constraint between charge and rotation rate for degenerate black holes surrounded by matter
Authors:Ansorg, Marcus; Pfister, Herbert
Date of Publication (YYYY-MM-DD):2008-02
Title of Journal:Classical and Quantum Gravity
Journal Abbrev.:Class. Quant. Grav.
Volume:25
Issue / Number:3
Sequence Number of Article:035009
Review Status:not specified
Audience:Not Specified
Abstract / Description:We consider stationary, axially and equatorially symmetric systems consisting of a central rotating and charged degenerate black hole and surrounding physically realistic matter. We show that $a^2+Q^2=M^2$ always holds, where $a=J/M$ is the black hole's intrinsic angular momentum per unit mass, $Q$ its electric charge and $M$ the well known black hole mass parameter introduced by Christodoulou and Ruffini.
External Publication Status:published
Document Type:Article
Communicated by:Gerhard Huisken
Affiliations:MPI für Gravitationsphysik/Geometric Analysis and Gravitation
Identifiers:LOCALID:arXiv:0708.4196v3 [gr-qc]
DOI:10.1088/0264-9381/25/3/035009
ISSN:0264-9381
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