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Boson stars and black holes with complex and real scalar hair

Brihaye, Yves, Buisseret, Fabien, Hartmann, Betti, Layfield, Oliver·2025·Physical Review D
DOI 10.1103/physrevd.111.084014

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Abstract

We discuss boson stars and black holes with scalar hair in a model where the complex scalar field forming the boson star and the hair on the black hole, respectively, interacts with a real scalar field via a Hénon-Heiles-type potential. We demonstrate that black holes and boson stars carrying only a real scalar field with cubic self-interaction are possible and that black holes with both real and complex scalar field branch off from these solutions for sufficiently large interaction between the two fields and/or sufficiently large horizon radius r h . The latter possess lower mass for the same choice of coupling constants than the former, however seem to be thermodynamically preferred only for high enough temperature.

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Cited by 1

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Metadata

Authors
Brihaye, Y., Buisseret, F., Hartmann, B., & Layfield, O.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2025-04-08
Volume
111
Issue
8
ISSN
  • 2470-0010
  • 2470-0029
DOI
10.1103/physrevd.111.084014
Cited by
1
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (vor)

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CoChat. (2026). Citation check: Boson stars and black holes with complex and real scalar hair. https://app.cochat.ai/papers/10.1103/physrevd.111.084014
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Brihaye, Y., Buisseret, F., Hartmann, B., & Layfield, O. (2025). Boson stars and black holes with complex and real scalar hair. Physical Review D. https://doi.org/10.1103/physrevd.111.084014

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