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New charged black holes with conformal scalar hair

Andrés Anabalón and Hideki Maeda
Phys. Rev. D 81, 041501(R) – Published 12 February 2010

Abstract

A new class of four-dimensional, hairy, stationary solutions of the Einstein-Maxwell-Λ system with a conformally coupled scalar field is obtained. The metric belongs to the Plebański-Demiański family and hence its static limit has the form of the charged (A)dS C metric. It is shown that, in the static case, a new family of hairy black holes arises. They turn out to be cohomogeneity-two, with horizons that are neither Einstein nor homogenous manifolds. The conical singularities in the C metric can be removed due to the backreaction of the scalar field providing a new kind of regular, radiative spacetime. The scalar field carries a continuous parameter proportional to the usual acceleration present in the C metric. In the zero-acceleration limit, the static solution reduces to the dyonic Bocharova-Bronnikov-Melnikov-Bekenstein solution or the dyonic extension of the Martínez-Troncoso-Zanelli black holes, depending on the value of the cosmological constant.

  • Received 21 August 2009

DOI:https://doi.org/10.1103/PhysRevD.81.041501

©2010 American Physical Society

Authors & Affiliations

Andrés Anabalón1,2,* and Hideki Maeda2,†

  • 1Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, D-14476 Golm, Germany
  • 2Centro de Estudios Científicos (CECS), Arturo Prat 514, Valdivia, Chile

  • *anabalon-at-aei.mpg.de
  • hideki-at-cecs.cl

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Issue

Vol. 81, Iss. 4 — 15 February 2010

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