A universal constraint between charge and rotation rate for degenerate black holes surrounded by matter

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dc.creatorAnsorg, Marcus
dc.creatorPfister, Herbert
dc.date2007-08-30
dc.date2008-01-24
dc.date.accessioned2026-07-07T11:18:59Z
dc.date.available2026-07-07T11:18:59Z
dc.descriptionWe consider stationary, axially and equatorially symmetric systems consisting of a central rotating and charged degenerate black hole and surrounding matter. We show that $a^2+Q^2=M^2$ always holds provided that a continuous sequence of spacetimes can be identified, leading from the Kerr-Newman solution in electrovacuum to the solution in question. The quantity $a=J/M$ 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.
dc.description19 pages, 2 figures, replaced with published version
dc.identifierhttps://arxiv.org/abs/0708.4196
dc.identifierhttp://arxiv.org/abs/0708.4196
dc.identifierClass.Quant.Grav.25:035009,2008
dc.identifierdoi:10.1088/0264-9381/25/3/035009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193535
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleA universal constraint between charge and rotation rate for degenerate black holes surrounded by matter
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