Slowly rotating black holes in the Einstein-Maxwell-scalar theory
Jianhui Qiu
Abstract:We make the research on a slowly rotating black hole solution in a new Einstein-Maxwell-scalar theory, which is an extension of the Einstein-Maxwell-dilaton theory. The gyromagnetic ratio of this black hole is calculated and it increases with the parameter β, but decreases with the parameter γ. In the Einstein-Maxwell-dilaton theory where the parameter β is in the absence, the gyromagnetic ratio is always less than 2, the gyromagnetic ratio for Kerr-Newman black hole. Now we find that the standard gyromagnetic… Show more
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