Autor(es)

Barton, Simon ^[1] ; Hartmann, Betti ^{[2, 3, 4, 5]} ; Kleihaus, Burkhard ^[3] ; Kunz, Jutta ^[3]

Afiliação do(s) autor(es)

^[1] Univ Cologne, Fac Math & Nat Sci, D-50923 Cologne - Germany

^[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

^[3] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg - Germany

^[4] Jacobs Univ Bremen, Dept Phys & Earth Sci, D-28759 Bremen - Germany

^[5] UCL, Dept Math, Gower St, London WC1E 6BT - England

• Tipo de documento: Artigo Científico
• Fonte: Physics Letters B; v. 817, JUN 10 2021.
• Citações Web of Science: 0

Resumo

We construct spontaneously vectorized black holes where a real vector field is coupled to the Gauss Bonnet invariant. We employ three coupling functions for the vector field, and determine the respective domains of existence of the vectorized black holes. These domains of existence are bounded by the marginally stable Schwarzschild black holes and the critical vectorized black holes. We also address the effects of a mass term. For a given black hole mass the horizon radius is smaller for the vectorized black holes than for the Schwarzschild black holes. Since the vector field vanishes at the horizon, there is no contribution from the Gauss-Bonnet term to the entropy of the vectorized black holes. (C) 2021 The Author(s). Published by Elsevier B.V. (AU)

• Processo FAPESP: 19/01511-5 - Buracos negros e solitons em modelos generalizados de gravidade escalar-tensorial
• Beneficiário: Betti Hartmann
• Modalidade de apoio: Auxílio à Pesquisa - Regular