Nonminimal derivative coupling scalar-tensor theories: Odd-parity perturbations and black hole stability

Adolfo Cisterna, Miguel Cruz, Térence Delsate, Joel Saavedra

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

30 Citas (Scopus)

Resumen

We derive the odd-parity perturbation equation for the nonminimal kinetic coupling sector of the general Horndeski theory, where the kinetic term is coupled to the metric and the Einstein tensor. We derive the potential of the perturbation, by identifying a master function and switching to tortoise coordinates. We then prove the mode stability under linear odd-parity perturbations of hairy black holes in this sector of Horndeski theory, when a cosmological constant term in the action is included. Finally, we comment on the existence of slowly rotating black hole solutions in this setup and discuss their implications on the physics of compact object configurations, such as neutron stars.

Idioma originalInglés
Número de artículo104018
PublicaciónPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volumen92
N.º10
DOI
EstadoPublicada - 6 nov 2015
Publicado de forma externa

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