Quasinormal modes of hot, cold and bald Einstein–Maxwell-scalar black holes

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dc.contributor.authorBlázquez Salcedo, José Luis
dc.contributor.authorHerdeiro, Carlos A. R.
dc.contributor.authorKahlen, Sarah
dc.contributor.authorKunz, Jutta
dc.contributor.authorPombo, Alexandre M.
dc.contributor.authorRadu, Eugen
dc.date.accessioned2023-06-17T08:29:20Z
dc.date.available2023-06-17T08:29:20Z
dc.date.issued2021-02-15
dc.description.abstractEinstein–Maxwell-scalar models allow for different classes of black hole solutions, depending on the non-minimal coupling function f(ϕ) employed, between the scalar field and the Maxwell invariant. Here, we address the linear mode stability of the black hole solutions obtained recently for a quartic coupling function, f(ϕ)=1+αϕ4 (Blázquez-Salcedo et al. in Phys. Lett. B 806:135493, 2020). Besides the bald Reissner–Nordström solutions, this coupling allows for two branches of scalarized black holes, termed cold and hot, respectively. For these three branches of black holes we calculate the spectrum of quasinormal modes. It consists of polar scalar-led modes, polar and axial electromagnetic-led modes, and polar and axial gravitational-led modes. We demonstrate that the only unstable mode present is the radial scalar-led mode of the cold branch. Consequently, the bald Reissner–Nordström branch and the hot scalarized branch are both mode-stable. The non-trivial scalar field in the scalarized background solutions leads to the breaking of the degeneracy between axial and polar modes present for Reissner–Nordström solutions. This isospectrality is only slightly broken on the cold branch, but it is strongly broken on the hot branch.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. Horizonte 2020
dc.description.sponsorshipFCT
dc.description.sponsorshipDFG
dc.description.sponsorshipCenter for Research and Development in Mathematics and Applications (CIDMA) through the Portuguese Foundation for Science and Technology (FCT - Fundação para a Ciência e a Tecnologia)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/74461
dc.identifier.doi10.1140/epjc/s10052-021-08952-w
dc.identifier.issn1434-6044
dc.identifier.officialurlhttps://doi.org/10.1140/epjc%2Fs10052-021-08952-w
dc.identifier.urihttps://hdl.handle.net/20.500.14352/7268
dc.issue.number2
dc.journal.titleThe European Physical Journal C
dc.language.isoeng
dc.publisherSpringer
dc.relation.projectIDFunFiCO (7777840)
dc.relation.projectIDBL 1553
dc.relation.projectIDPD/BD/142842/2018
dc.relation.projectIDUIDB/04106/2020 and UIDP/04106/2020
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.ucmAstrofísica
dc.titleQuasinormal modes of hot, cold and bald Einstein–Maxwell-scalar black holes
dc.typejournal article
dc.volume.number81
dspace.entity.typePublication
relation.isAuthorOfPublication2a6d99a8-5cf7-4359-b1e1-b96adfb2fb3f
relation.isAuthorOfPublication.latestForDiscovery2a6d99a8-5cf7-4359-b1e1-b96adfb2fb3f
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