Massive scalar field perturbations of black holes immersed in Chaplygin-like dark fluid

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datacite.alternateIdentifier.citationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,Vol.,2024
datacite.alternateIdentifier.doi10.1088/1475-7516/2024/06/061
datacite.creatorBecar, Ramon
datacite.creatorGonzalez, P. A.
datacite.creatorPapantonopoulos, Eleftherios
datacite.creatorVasquez, Yerko
datacite.date2024
datacite.subject.englishExact solutions
datacite.subject.englishblack holes and black hole thermodynamics in GR and beyond
datacite.subject.englishGR black holes
datacite.subject.englishgravity
datacite.subject.englishmodified gravity
datacite.titleMassive scalar field perturbations of black holes immersed in Chaplygin-like dark fluid
dc.date.accessioned2024-09-10T18:47:10Z
dc.date.available2024-09-10T18:47:10Z
dc.description.abstractWe consider massive scalar field perturbations in the background of black holes immersed in Chaplygin-like dark fluid (CDF), and we analyze the photon sphere modes, the de Sitter modes as well as the near extremal modes and discuss their dominance, by using the pseudospectral Chebyshev method and the third order Wentzel-Kramers-Brillouin approximation. We also discuss the impact of the parameter representing the intensity of the CDF on the families of quasinormal modes. Mainly, we find that the propagation of a massive scalar field is stable in this background, and it is characterized by quasinormal frequencies with a smaller oscillation frequency and a longer decay time compared to the propagation of the same massive scalar field within the Schwarzschild-de Sitter background.
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/5946
dc.language.isoen
dc.publisherIOP Publishing Ltd
dc.sourceJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
oaire.resourceTypeArticle
uct.indizacionSCI
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