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Título
Extremal cosmological black holes in Horndeski gravity and the anti-evaporation regime
Año del Documento
2020
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Universe, 2020, Vol. 6, Nº.11, 210
Résumé
Extremal cosmological black holes are analysed in the framework of the most general
second order scalar-tensor theory, the so-called Horndeski gravity. Such extremal black holes are
a particular case of Schwarzschild-De Sitter black holes that arises when the black hole horizon
and the cosmological one coincide. Such metric is induced by a particular value of the effective
cosmological constant and is known as Nariai spacetime. The existence of this type of solutions is
studied when considering the Horndeski Lagrangian and its stability is analysed, where the so-called
anti-evaporation regime is studied. Contrary to other frameworks, the radius of the horizon remains
stable for some cases of the Horndeski Lagrangian when considering perturbations at linear order.
Materias (normalizadas)
Gravitation
Physics
Classical and Quantum Gravitation, Relativity Theory
Cosmology
Black holes (Astronomy)
Materias Unesco
2101 Cosmología y Cosmogonía
ISSN
2218-1997
Revisión por pares
SI
Patrocinador
European Union’s Horizon 2020 (European Cooperation in Science and Technology) (action CA15117)
Fundação para a Ciència e a Tecnologia (FCT) (grant number PD/BD/114435/2016)
Fundação para a Ciència e a Tecnologia (FCT) (grant number PD/BD/114435/2016)
Patrocinador
info:eu-repo/grantAgreement/EC/H2020/15117
Version del Editor
Propietario de los Derechos
© 2020 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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