Role of Gauss-Bonnet corrections in a DGP brane gravitational collapse

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dc.contributor.authorTavakoli, Yaser
dc.contributor.authorArdabili, Ahad K.
dc.contributor.authorBouhmadi-Lopez, Mariam
dc.contributor.authorMoniz, Paulo Vargas
dc.date.accessioned2022-07-04T08:05:49Z
dc.date.available2022-07-04T08:05:49Z
dc.date.issued2022en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Temel Bilimler Bölümüen_US
dc.description.abstractAn Oppenheimer-Snyder (OS)-type collapse is considered for a Dvali-Gabadadze-Porrati (DGP) brane, whereas a Gauss-Bonnet (GB) term is provided for the bulk. We study the combined effect of the DGP induced gravity plus the GB curvature, regarding any modification of the general relativistic OS dynamics. Our paper has a twofold objective. On the one hand, we investigate the nature of singularities that may arise at the collapse end state. It is shown that all dynamical scenarios for the contracting brane would end in one of the following cases, depending on conditions imposed: either a central shell-focusing singularity or what we designate as a ???sudden collapse singularity.??? On the other hand, we also study the deviations of the exterior spacetime from the standard Schwarzschild geometry, which emerges in our modified OS scenario. Our purpose is to investigate whether a black hole always forms regarding this brane world model. We find situations where a naked singularity emerges instead.en_US
dc.identifier.citationTavakoli, Y., Ardabili, A. K., Bouhmadi-López, M., Moniz, P. V. (2022). Role of Gauss-Bonnet corrections in a DGP brane gravitational collapse. Physical Review D, 105(8).en_US
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.issue8en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12939/2604
dc.identifier.volume105en_US
dc.identifier.wosWOS:000810908800007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.institutionauthorArdabili, Ahad K.
dc.language.isoen
dc.relation.ispartofPhysical Review D
dc.relation.isversionof10.1103/PhysRevD.105.084050en_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAstronomyen_US
dc.subjectAstrophysicsen_US
dc.subjectPhysicsen_US
dc.titleRole of Gauss-Bonnet corrections in a DGP brane gravitational collapse
dc.typeArticle

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