Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/16645
Title: Inside black holes with synchronized hair
Author: Brihaye, Yves
Herdeiro, Carlos
Radu, Eugen
Issue Date: 10-Sep-2016
Publisher: Elsevier
Abstract: Recently, various examples of asymptotically flat, rotating black holes (BHs) with synchronized hair have been explicitly constructed, including Kerr BHs with scalar or Proca hair, and Myers-Perry BHs with scalar hair and a mass gap, showing there is a general mechanism at work. All these solutions have been found numerically, integrating the fully non-linear field equations of motion from the event horizon outwards. Here, we address the spacetime geometry of these solutions inside the event horizon. Firstly, we provide arguments, within linear theory, that there is no regular inner horizon for these solutions. Then, we address this question fully non-linearly, using as a tractable model five dimensional, equal spinning, Myers-Perry hairy BHs. We find that, for non-extremal solutions: (1) the inside spacetime geometry in the vicinity of the event horizon is smooth and the equations of motion can be integrated inwards; (2) before an inner horizon is reached, the spacetime curvature grows (apparently) without bound. In all cases, our results suggest the absence of a smooth Cauchy horizon, beyond which the metric can be extended, for hairy BHs with synchronized hair. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
Peer review: yes
URI: http://hdl.handle.net/10773/16645
DOI: 10.1016/j.physletb.2016.06.078
ISSN: 0370-2693
Appears in Collections:CIDMA - Artigos
DFis - Artigos
GGDG - Artigos

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