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Title: D = 5 static, charged black holes, strings and rings with resonant, scalar Q-hair
Author: Brihaye, Y.
Herdeiro, C.
Radu, E.
Keywords: Black holes
Classical theories of gravity
Issue Date: 2022
Publisher: Springer
Abstract: A mechanism for circumventing the Mayo-Bekenstein no-hair theorem allows endowing four dimensional (D = 4) asymptotically flat, spherical, electro-vacuum black holes with a minimally coupled U(1)-gauged scalar field profile: Q-hair. The scalar field must be massive, self-interacting and obey a resonance condition at the threshold of (charged) superradiance. We establish generality for this mechanism by endowing three different types of static black objects with scalar hair, within a D = 5 Einstein-Maxwellgauged scalar field model: asymptotically flat black holes and black rings; and black strings which asymptote to a Kaluza-Klein vacuum. These D = 5 Q-hairy black objects share many of the features of their D = 4 counterparts. In particular, the scalar field is subject to a resonance condition and possesses a Q-ball type potential. For the static black ring, the charged scalar hair can balance it, yielding solutions that are singularity free on and outside the horizon.
Peer review: yes
DOI: 10.1007/JHEP10(2022)153
ISSN: 1126-6708
Appears in Collections:CIDMA - Artigos
GGDG - Artigos

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