Black hole ringdown, and theoretical considerations concerning k-essence, Rastall and entangled gravity

Página do item simplificado
bibo.pageEnd100
dc.contributor.advisor1Fabris, Júlio César
dc.contributor.advisor1IDhttps://orcid.org/000000018880107X
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/5193649615872035
dc.contributor.authorSantos, Edison Cesar de Oliveira
dc.contributor.authorIDhttps://orcid.org/0000000261611804
dc.contributor.authorLatteshttp://lattes.cnpq.br/6514257640588577
dc.contributor.referee1Zanchin, Vilson Tonin
dc.contributor.referee1IDhttps://orcid.org/0000-0001-8499-1515
dc.contributor.referee1Latteshttp://lattes.cnpq.br/2262120637290369
dc.contributor.referee2Aguiar, Odylio Denys de
dc.contributor.referee2IDhttps://orcid.org/0000-0002-2139-4390
dc.contributor.referee2Latteshttp://lattes.cnpq.br/3325984959083987
dc.contributor.referee3Ricaldi, Wiliam Santiago Hipolito
dc.contributor.referee3IDhttps://orcid.org/000000021748553X
dc.contributor.referee3Latteshttp://lattes.cnpq.br/0293080746483402
dc.contributor.referee4Sturani, Riccardo
dc.contributor.referee4IDhttps://orcid.org/0000000321574401
dc.contributor.referee4Latteshttp://lattes.cnpq.br/9771195169911237
dc.contributor.referee5Christensen, Nelson
dc.contributor.referee5IDhttps://orcid.org/0000-0002-6870-4202
dc.contributor.referee6Moreschi, Osvaldo Mario
dc.contributor.referee6IDhttps://orcid.org/0000-0001-9753-3820
dc.date.accessioned2024-05-30T00:49:42Z
dc.date.available2024-05-30T00:49:42Z
dc.date.issued2021-09-24
dc.description.abstractWhile the detection of gravitational waves was an outstanding achievement in theo- retical and observational physics, data science, computer science and engineering on their own merit, it also allowed us to observe black holes for the first time. Black hole physics had a tumultuous research history, from a nearly non-existent field to work, in the first years of general relativity, culminating in the golden age of general relativity in the sixties and mid-seventies, where black holes entered the mainstream theoretical physics. We could be arguably living in the second golden age of general relativity, but this time around black holes entered the mainstream observational physics. In light of this, this thesis tackle some problems in black hole physics, or in a broader sense, the current understanding of gravity. The first part of this thesis is devoted to developing the machinery of first-order perturbation theory in order to obtain the quasi-normal modes from both singular and non-singular black holes, that is, the frequencies related to the oscillation of a black hole after its merging. In the next section we contrast how a particular analytical model, that works from the merger up to the ringdown phase, constrains both the final mass and spin parameter when compared to the published results. In the second part, we investigate a series of works related to spherically-symmetric solutions of both k-essence and Rastall theories, where a possible solution to what seems a coincidence in both theories, might be related to a formulation of a lagrangian formalism for the latter theory. We end this thesis finding black hole solutions to a novel theory of gravity, entangled gravity. This model is not defined in the absence of any matter field, but we argue that black hole solutions satisfying the near vacuum condition resembles solutions obtained in standard general relativity.
dc.description.sponsorshipFundação de Amparo à Pesquisa do Espírito Santo (FAPES)
dc.description.sponsorshipFundação Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.formatText
dc.identifier.urihttp://repositorio.ufes.br/handle/10/14918
dc.languagepor
dc.publisherUniversidade Federal do Espírito Santo
dc.publisher.countryBR
dc.publisher.courseDoutorado em Astrofísica, Cosmologia e Gravitação
dc.publisher.departmentCentro de Ciências Exatas
dc.publisher.initialsUFES
dc.publisher.programPrograma de Pós-Graduação em Astrofísica, Cosmologia e Gravitação
dc.rightsopen access
dc.subjectBuraco negro
dc.subjectteoria de perturbação
dc.subjectmodos quasi-normais
dc.subjectestabilidade
dc.subjectteoria modificada da gravitação
dc.subject.br-rjbnsubject.br-rjbn
dc.subject.cnpqAstronomia
dc.titleBlack hole ringdown, and theoretical considerations concerning k-essence, Rastall and entangled gravity
dc.typedoctoralThesis
Arquivos
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
EdisonCesardeOliveiraSantos-2021-tese.pdf
Tamanho:
2.33 MB
Formato:
Adobe Portable Document Format
Descrição:
Baixar
Coleções
Doutorado em Astrofísica, Cosmologia e Gravitação