Reissner-Nordström dyonic black holes with gauged scalar hair

Herdeiro, Carlos; Radu, Eugen; Shnir, Yakov

doi:10.1016/j.physletb.2024.138912

Physics Letters B

2024

DOI: 10.1016/j.physletb.2024.138912

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Reissner-Nordström dyonic black holes with gauged scalar hair

Carlos Herdeiro,

Eugen Radu,

Yakov Shnir

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2024

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Cited by 2 publications

References 35 publications

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Born-Infeld stars and charged black holes surrounded by scalar clouds

Brihaye,

Hartmann

2024

Phys. Rev. D

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We discuss the formation of scalar clouds on charged, spherically symmetric and static stars and black holes. We first discuss Reissner-Nordström black holes with electric and magnetic charge and present new results demonstrating the existence of a second branch of solutions. Moreover, we find that the presence of the magnetic charge allows for a smaller mass and Noether charge when the clouds are close to their minimal possible mean radius. When replacing standard electrodynamics with Born-Infeld (BI) electrodynamics, the background model possesses globally regular, starlike solutions as well as black hole solutions. We show that the former can be scalarized as well, and that the scalar clouds become more compact when decreasing the electric charge of the BI star. Finally, we discuss a magnetic dipole field in the background of the scalarized BI star and show that the strong gravitational field of this star leads to a significant change. Published by the American Physical Society 2024

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Born-Infeld stars and charged black holes surrounded by scalar clouds

Brihaye,

Hartmann

2024

Phys. Rev. D

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Hairy dyonic Reissner-Nordström black holes in an Einstein-Maxwell-Friedberg-Lee-Sirlin type model

Kunz,

Loiko,

Shnir

2024

Phys. Rev. D

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We construct spherically symmetric dyonic black holes in a generalized Maxwell-Friedberg-Lee-Sirlin type model with a complex scalar doublet and a symmetry breaking potential for the real scalar field, minimally coupled to Einstein gravity in asymptotically flat space. We analyze the properties of the hairy black holes and determine their domain of existence. Our discussion focuses mostly on the case of a long-ranged massless real scalar field. Our results indicate that in this case, depending on the coupling constants, the resonant hairy dyonic black holes may bifurcate from Reissner-Nordström black holes at maximal chemical potential, while the limiting solutions at minimal chemical potential may be related to the Penney solution. Published by the American Physical Society 2024

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Reissner-Nordström dyonic black holes with gauged scalar hair

Cited by 2 publications

References 35 publications

Born-Infeld stars and charged black holes surrounded by scalar clouds

Born-Infeld stars and charged black holes surrounded by scalar clouds

Hairy dyonic Reissner-Nordström black holes in an Einstein-Maxwell-Friedberg-Lee-Sirlin type model

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