The Ergo Region of the Kerr Black Hole in the Isotropic Coordinate

Kazuyasu Shigemoto
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Kazuyasu Shigemoto: Tezukayama University, Japan

European Journal of Applied Physics, 2024, vol. 6, issue 2, 26-30

Abstract: The isotropic coordinate is the more physically meaningful coordinate in the Schwarzschild black hole. Then we apply this isotropic coordinate to the Kerr black hole, and we have found the ergo region does not appear and all metrices gμν become regular even at the “event horizon” in this coordinate. But the determinant det gμν becomes zero at the “event horizon”, which means that gμν becomes singular at the “event horizon”.

Keywords: Equivalence principle; Ergo region; Isotropic coordinate; Kerr black hole (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:epw:physic:v:6:y:2024:i:2:id:11306

DOI: 10.24018/ejphysics.2024.6.2.306

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