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dc.contributor.authorGuo, Guangzhou
dc.contributor.authorWang, Peng
dc.contributor.authorWu, Houwen
dc.contributor.authorYang, Haitang
dc.date.accessioned2022-06-15T15:01:32Z
dc.date.available2022-06-15T15:01:32Z
dc.date.issued2022-06
dc.date.submitted2022-05-14
dc.identifier.issn1126-6708
dc.identifier.otherjhep06(2022)073
dc.identifier.other18553
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/338128
dc.description.abstract<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We study the waveforms of time signals produced by scalar perturbations in static hairy black holes, in which the perturbations can be governed by a double-peak effective potential. The inner potential peak would give rise to echoes, which provide a powerful tool to test the Kerr hypothesis. The waveforms are constructed in the time and frequency domains, and we find that the late-time waveforms are determined by the long-lived and sub-long-lived quasinormal modes, which are trapped in the potential valley and near the smaller peak, respectively. When the distance between the peaks is significantly larger than the width of the peaks, a train of decaying echo pulses is produced by the superposition of the long-lived and sub-long-lived modes. In certain cases, the echoes can vanish and then reappear. When the peaks are close enough, one detects far fewer echo signals and a following sinusoid tail, which is controlled by the long-lived or sub-long-lived mode and hence decays very slowly.</jats:p>
dc.languageen
dc.publisherSpringer Science and Business Media LLC
dc.subjectRegular Article - Theoretical Physics
dc.subjectBlack Holes
dc.subjectClassical Theories of Gravity
dc.titleEchoes from hairy black holes
dc.typeArticle
dc.date.updated2022-06-15T15:01:32Z
prism.issueIdentifier6
prism.publicationNameJournal of High Energy Physics
prism.volume2022
dc.identifier.doi10.17863/CAM.85537
dcterms.dateAccepted2022-05-17
rioxxterms.versionofrecord10.1007/jhep06(2022)073
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn1029-8479
cam.issuedOnline2022-06-14
dc.identifier.arxiv2204.00982


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