Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/35211
DC FieldValueLanguage
dc.contributor.authorAnnulli, Lorenzopt_PT
dc.contributor.authorHerdeiro, Carlos A. R.pt_PT
dc.date.accessioned2022-11-18T11:53:04Z-
dc.date.available2022-11-18T11:53:04Z-
dc.date.issued2022-03-24-
dc.identifier.issn0370-2693pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/35211-
dc.description.abstractIn the presence of certain non-minimal couplings between a scalar field and the Gauss-Bonnet curvature invariant, Kerr black holes can scalarize, as long as they are spinning fast enough. This provides a distinctive violation of the Kerr hypothesis, occurring only for some high spin range. In this paper we assess if strong magnetic fields, that may exist in the vicinity of astrophysical black holes, could facilitate this distinctive effect, by bringing down the spin threshold for scalarization. This inquiry is motivated by the fact that self-gravitating magnetic fields, by themselves, can also promote "spin-induced" scalarization. Nonetheless, we show that in the \textit{vicinity of the horizon} the effect of the magnetic field $B$ on a black hole of mass $M$, up to $BM\lesssim 1$, works \textit{against} spin-induced scalarization, requiring a larger dimensionless spin $j$ from the black hole. A geometric interpretation for this result is suggested, in terms of the effects of rotation $vs.$ magnetic fields on the horizon geometry.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04106%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04106%2F2020/PTpt_PT
dc.relationBIPD/UI97/9854/2021pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-OUT%2F28407%2F2017/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/CERN%2FFIS-PAR%2F0027%2F2019/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-AST%2F3041%2F2020/PTpt_PT
dc.relationH2020-MSCA-RISE-2017pt_PT
dc.rightsopenAccesspt_PT
dc.titleSpin-induced scalarization and magnetic fieldspt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.titlePhysics Letters Bpt_PT
degois.publication.volume832pt_PT
dc.identifier.doi10.1016/j.physletb.2022.137227pt_PT
dc.identifier.essn1873-2445pt_PT
dc.identifier.articlenumber137227pt_PT
Appears in Collections:CIDMA - Artigos
GGDG - Artigos

Files in This Item:
File Description SizeFormat