Abstract
We study a family of four-dimensional, asymptotically flat, charged black holes that develop (charged) scalar hair as one increases their charge at fixed mass. Surprisingly, the maximum charge for given mass is a nonsingular hairy black hole with nonzero Hawking temperature. The implications for Hawking evaporation are discussed.
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Dias, Ó.J.C., Horowitz, G.T. & Santos, J.E. Extremal black holes that are not extremal: maximal warm holes. J. High Energ. Phys. 2022, 64 (2022). https://doi.org/10.1007/JHEP01(2022)064
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DOI: https://doi.org/10.1007/JHEP01(2022)064