Hairy black-hole solutions in generalized Proca theories

Lavinia Heisenberg, Ryotaro Kase, Masato Minamitsuji, Shinji Tsujikawa

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


We present a family of exact black-hole solutions on a static spherically symmetric background in second-order generalized Proca theories with derivative vector-field interactions coupled to gravity. We also derive nonexact solutions in power-law coupling models including vector Galileons and numerically show the existence of regular black holes with a primary hair associated with the longitudinal propagation. The intrinsic vector-field derivative interactions generally give rise to a secondary hair induced by nontrivial field profiles. The deviation from General Relativity is most significant around the horizon and hence there is a golden opportunity for probing the Proca hair by the measurements of gravitational waves (GWs) in the regime of strong gravity.

Original languageEnglish
Article number084049
JournalPhysical Review D
Issue number8
Publication statusPublished - 2017 Oct 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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