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Non-monotonic orbital velocity profiles around rapidly rotating Kerr–(anti-)de Sitter black holes - MaRDI portal

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Non-monotonic orbital velocity profiles around rapidly rotating Kerr–(anti-)de Sitter black holes

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Publication:3447444

DOI10.1088/0264-9381/24/10/009zbMATH Open1117.83073arXiv0704.3963OpenAlexW2064643107MaRDI QIDQ3447444

Author name not available (Why is that?)

Publication date: 19 June 2007

Published in: (Search for Journal in Brave)

Abstract: It has been recently demonstrated that the orbital velocity profile around Kerr black holes in the equatorial plane as observed in the locally non-rotating frame exhibits a non-monotonic radial behaviour. We show here that this unexpected minimum-maximum feature of the orbital velocity remains if the Kerr vacuum is generalized to the Kerr-de Sitter or Kerr-anti-de Sitter metric. This is a new general relativity effect in Kerr spacetimes with non-vanishing cosmological constant. Assuming that the profile of the orbital velocity is known, this effect constrains the spacetime parameters.


Full work available at URL: https://arxiv.org/abs/0704.3963




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