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dc.contributor.author
Bejarano, Cecilia Soledad
dc.contributor.author
Olmo, Gonzalo J.
dc.contributor.author
Rubiera Garcia, Diego
dc.date.available
2017-09-20T17:14:03Z
dc.date.issued
2017-03
dc.identifier.citation
Bejarano, Cecilia Soledad; Olmo, Gonzalo J.; Rubiera Garcia, Diego; What is a singular black hole beyond General Relativity?; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 95; 6; 3-2017; 1-17
dc.identifier.issn
1550-7998
dc.identifier.uri
http://hdl.handle.net/11336/24685
dc.description.abstract
Exploring the characterization of singular black hole spacetimes, we study the relation between energy density, curvature invariants, and geodesic completeness using a quadratic f (R) gravity theory coupled to an anisotropic fluid. Working in a metric-affine approach, our models and solutions represent minimal extensions of General Relativity (GR) in the sense that they rapidly recover the usual Reissner-Nordstrom solution from near the inner horizon outwards. The anisotropic fluid helps modify only the innermost geometry. Depending on the values and signs of two parameters on the gravitational and matter sectors, a breakdown of the correlations between the finiteness/divergence of the energy density, the behavior of curvature invariants, and the (in)completeness of geodesics is obtained. We find a variety of configurations with and without wormholes, a case with a de Sitter interior, solutions that mimic non-linear models of electrodynamics coupled to GR, and configurations with up to four horizons. Our results raise questions regarding what infinities, if any, a quantum version of these theories should regularize.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cosmic Censorship
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Einstein-Maxwell Spacetime
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Modified Theories of Gravity
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Classical Black Holes
dc.subject.classification
Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
What is a singular black hole beyond General Relativity?
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-20T13:40:02Z
dc.journal.volume
95
dc.journal.number
6
dc.journal.pagination
1-17
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Bejarano, Cecilia Soledad. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Olmo, Gonzalo J.. Universidad de Valencia; España
dc.description.fil
Fil: Rubiera Garcia, Diego. Universidad de Lisboa; Portugal
dc.journal.title
Physical Review D: Particles, Fields, Gravitation and Cosmology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.064043
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevD.95.064043
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1702.01292
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