Exact cosmological black hole solutions in Scalar Tensor Vector Gravity

Autores
Pérez, Daniela; Romero, Gustavo Esteban
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We find an exact solution of scalar-tensor-vector gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of such a kind found in the theory. We analyze the properties of the apparent horizons as well as the essential singularities of the metric, and compare them with the McVittie spacetime of general relativity. Depending on the cosmological model adopted and the value of the free parameter α of the theory, the solution describes a cosmological black hole, an inhomogeneity in an expanding universe, or a naked singularity. We use the results to set further constraints on the free parameters of the theory and we study geodesic motion in this spacetime.
Instituto Argentino de Radioastronomía
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Astronomía
Física
black holes
cosmology
modified gravity
general relativity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/141703
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/141703
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Exact cosmological black hole solutions in Scalar Tensor Vector GravityPérez, DanielaRomero, Gustavo EstebanAstronomíaFísicablack holescosmologymodified gravitygeneral relativityWe find an exact solution of scalar-tensor-vector gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of such a kind found in the theory. We analyze the properties of the apparent horizons as well as the essential singularities of the metric, and compare them with the McVittie spacetime of general relativity. Depending on the cosmological model adopted and the value of the free parameter α of the theory, the solution describes a cosmological black hole, an inhomogeneity in an expanding universe, or a naked singularity. We use the results to set further constraints on the free parameters of the theory and we study geodesic motion in this spacetime.Instituto Argentino de RadioastronomíaFacultad de Ciencias Astronómicas y Geofísicas2019-11-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/141703enginfo:eu-repo/semantics/altIdentifier/issn/0264-9381info:eu-repo/semantics/altIdentifier/issn/1361-6382info:eu-repo/semantics/altIdentifier/doi/10.1088/1361-6382/ab55c8info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:04:18Zoai:sedici.unlp.edu.ar:10915/141703Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:04:18.409SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
title Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
spellingShingle Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
Pérez, Daniela
Astronomía
Física
black holes
cosmology
modified gravity
general relativity
title_short Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
title_full Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
title_fullStr Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
title_full_unstemmed Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
title_sort Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
dc.creator.none.fl_str_mv Pérez, Daniela
Romero, Gustavo Esteban
author Pérez, Daniela
author_facet Pérez, Daniela
Romero, Gustavo Esteban
author_role author
author2 Romero, Gustavo Esteban
author2_role author
dc.subject.none.fl_str_mv Astronomía
Física
black holes
cosmology
modified gravity
general relativity
topic Astronomía
Física
black holes
cosmology
modified gravity
general relativity
dc.description.none.fl_txt_mv We find an exact solution of scalar-tensor-vector gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of such a kind found in the theory. We analyze the properties of the apparent horizons as well as the essential singularities of the metric, and compare them with the McVittie spacetime of general relativity. Depending on the cosmological model adopted and the value of the free parameter α of the theory, the solution describes a cosmological black hole, an inhomogeneity in an expanding universe, or a naked singularity. We use the results to set further constraints on the free parameters of the theory and we study geodesic motion in this spacetime.
Instituto Argentino de Radioastronomía
Facultad de Ciencias Astronómicas y Geofísicas
description We find an exact solution of scalar-tensor-vector gravity field equations that represents a black hole embedded in an expanding universe. This is the first solution of such a kind found in the theory. We analyze the properties of the apparent horizons as well as the essential singularities of the metric, and compare them with the McVittie spacetime of general relativity. Depending on the cosmological model adopted and the value of the free parameter α of the theory, the solution describes a cosmological black hole, an inhomogeneity in an expanding universe, or a naked singularity. We use the results to set further constraints on the free parameters of the theory and we study geodesic motion in this spacetime.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-22
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/141703
url http://sedici.unlp.edu.ar/handle/10915/141703
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0264-9381
info:eu-repo/semantics/altIdentifier/issn/1361-6382
info:eu-repo/semantics/altIdentifier/doi/10.1088/1361-6382/ab55c8
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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