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2018-11-22 - Article/Dans un journal avec peer-review - Anglais - 24 page(s)

Brihaye Yves , Brandelet Antoine , Ducobu Ludovic , Delsate Térence , "Nutty black holes in galileon scalar-tensor gravity" in International Journal of Modern Physics A, 33, 32, 1850189

  • Edition : World Scientific Publishing Co. (Singapore)
  • Codes CREF : Physique théorique et mathématique (DI1210)
  • Unités de recherche UMONS : Physique théorique et mathématique (S814)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
Texte intégral :

Abstract(s) :

(Anglais) Einstein gravity supplemented by a scalar field non-minimally coupled to a Gauss-Bonnet term provides an example of model of scalar-tensor gravity where hairy black holes do exist. We consider the classical equations within a metric endowed with a NUT-charge and obtain a two-parameter family of nutty-hairy black holes. The pattern of these solutions in the exterior and the interior of their horizon is studied in some details. The influence of both – the hairs and the NUT-charge – on the lightlike and timelike geodesics is emphasized.