Exact cosmological black hole solutions in Scalar Tensor Vector Gravity

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 me...

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Detalles Bibliográficos
Autores principales: Pérez, Daniela, Romero, Gustavo Esteban
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Astronomía
Física
black holes
cosmology
modified gravity
general relativity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141703
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-141703
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Física
black holes
cosmology
modified gravity
general relativity
spellingShingle Astronomía
Física
black holes
cosmology
modified gravity
general relativity
Pérez, Daniela
Romero, Gustavo Esteban
Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
topic_facet Astronomía
Física
black holes
cosmology
modified gravity
general relativity
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.
format Articulo
Articulo
author Pérez, Daniela
Romero, Gustavo Esteban
author_facet Pérez, Daniela
Romero, Gustavo Esteban
author_sort Pérez, Daniela
title Exact cosmological black hole solutions in Scalar Tensor Vector Gravity
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
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/141703
work_keys_str_mv AT perezdaniela exactcosmologicalblackholesolutionsinscalartensorvectorgravity
AT romerogustavoesteban exactcosmologicalblackholesolutionsinscalartensorvectorgravity
bdutipo_str Repositorios
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