Mode-Coupling in Rotating Gravitational Collapse of a Scalar Field

We present an analytic study of the mode-coupling phenomena for a scalar field propagating on a rotating Kerr background. Physically, this phenomena is caused by the dragging of reference frames, due to the black-hole (or star's) rotation. We find that different modes become mixed during the ev...

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Bibliographic Details
Published inarXiv.org
Main Author Hod, Shahar
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 29.12.1999
Subjects
Angular distribution
Coupling
Gravitational collapse
Stellar rotation
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Summary:We present an analytic study of the mode-coupling phenomena for a scalar field propagating on a rotating Kerr background. Physically, this phenomena is caused by the dragging of reference frames, due to the black-hole (or star's) rotation. We find that different modes become mixed during the evolution and the asymptotic late-time tails are dominated by a mode which, in general, has an angular distribution different from the original one. We show that a rotating Kerr black hole becomes `bald' slower than a spherically-symmetric Schwarzschild black hole.
ISSN:2331-8422
DOI:10.48550/arxiv.9902072