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Charged hairy black holes in the gauged Einstein-Friedberg-Lee-Sirlin model

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arxiv 2303.16562 v1 pith:753WADPU submitted 2023-03-29 hep-th gr-qc

classification hep-thgr-qc
keywords blackholeschargedhairyscalarcomponentmasslessmodel
verification ladder T0 review T1 audit T2 compute T3 formal
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We obtain charged spherically symmetric black holes in the two-component scalar Einstein-Maxwell-Friedberg-Lee-Sirlin model with a symmetry breaking potential. These asymptotically flat black holes carry resonant scalar Q-hair. As expected, these hairy black holes give rise to non-uniqueness. When comparing these solutions with the corresponding charged boson stars and Reissner-Nordstr\"om black holes, we find a different pattern in the case of a massive real scalar component and a massless one. We demonstrate that, as the real component becomes massless, the resonant hairy black holes bifurcate from Reissner-Nordstr\"om black holes for sufficiently small gravitational coupling.

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