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dc.contributor.authorJiang, X
dc.contributor.authorWang, P
dc.contributor.authorYang, H
dc.contributor.authorWu, H
dc.date.accessioned2021-12-15T10:08:49Z
dc.date.available2021-12-15T10:08:49Z
dc.date.issued2021-11
dc.date.submitted2021-08-04
dc.identifier.issn1434-6044
dc.identifier.others10052-021-09816-z
dc.identifier.other9816
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/331447
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>The 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 <jats:inline-formula><jats:alternatives><jats:tex-math>$$\chi $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>χ</mml:mi> </mml:math></jats:alternatives></jats:inline-formula>-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.</jats:p>
dc.languageen
dc.publisherSpringer Science and Business Media LLC
dc.subjectRegular Article - Theoretical Physics
dc.titleTesting Kerr black hole mimickers with quasi-periodic oscillations from GRO J1655-40
dc.typeArticle
dc.date.updated2021-12-15T10:08:49Z
prism.issueIdentifier11
prism.publicationNameEuropean Physical Journal C
prism.volume81
dc.identifier.doi10.17863/CAM.78901
dcterms.dateAccepted2021-11-06
rioxxterms.versionofrecord10.1140/epjc/s10052-021-09816-z
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidJiang, X [0000-0002-0989-4966]
dc.identifier.eissn1434-6052
cam.issuedOnline2021-11-27


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