Journal
PHYSICAL REVIEW D
Volume 96, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.96.084049
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Funding
- Walter Haefner Foundation
- ETH Zurich Foundation
- JSPS Funds
- FCT-Portugal [SFRH/BPD/88299/2012]
- Grants-in-Aid for Scientific Research [16K05359, 17K14297, 15H05890] Funding Source: KAKEN
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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.
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