dc.contributor.author Jiang, X dc.contributor.author Wang, P dc.contributor.author Yang, H dc.contributor.author Wu, H dc.date.accessioned 2022-01-10T12:48:12Z dc.date.available 2022-01-10T12:48:12Z dc.date.issued 2021-11 dc.date.submitted 2021-08-04 dc.identifier.issn 1434-6044 dc.identifier.other s10052-021-09816-z dc.identifier.other 9816 dc.identifier.uri https://www.repository.cam.ac.uk/handle/1810/332524 dc.description.abstract AbstractThe measurements of quasi-periodic oscillations (QPOs) provide a quite powerful tool to test the nature of astrophysical black hole candidates in the strong gravitational field regime. In this paper, we use QPOs within the relativistic precession model to test a recently proposed family of rotating black hole mimickers, which reduce to the Kerr metric in a limiting case, and can represent traversable wormholes or regular black holes with one or two horizons, depending on the values of the parameters. In particular, assuming that the compact object of GRO J1655-40 is described by a rotating black hole mimicker, we perform a $$\chi$$ χ -square analysis to fit the parameters of the mimicker with two sets of observed QPO frequencies from GRO J1655-40. Our results indicate that although the metric around the compact object of GRO J1655-40 is consistent with the Kerr metric, a regular black hole with one horizon is favored by the observation data of GRO J1655-40. dc.language en dc.publisher Springer Science and Business Media LLC dc.subject Regular Article - Theoretical Physics dc.title Testing Kerr black hole mimickers with quasi-periodic oscillations from GRO J1655-40 dc.type Article dc.date.updated 2022-01-10T12:48:12Z prism.issueIdentifier 11 prism.publicationName European Physical Journal C prism.volume 81 dc.identifier.doi 10.17863/CAM.79974 dcterms.dateAccepted 2021-11-06 rioxxterms.versionofrecord 10.1140/epjc/s10052-021-09816-z rioxxterms.version VoR rioxxterms.licenseref.uri http://creativecommons.org/licenses/by/4.0/ dc.contributor.orcid Jiang, X [0000-0002-0989-4966] dc.identifier.eissn 1434-6052 cam.issuedOnline 2021-11-27
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