Generalized black diholes
arXiv:1405.2629 · doi:10.1103/PhysRevD.90.024013
Abstract
A 5-parametric exact solution, describing a binary system composed of identical counter-rotating black holes endowed with opposite electromagnetic charges, is constructed. The addition of the angular momentum parameter to the static Emparan-Teo dihole model introduces magnetic charges into this two-body system. The solution can be considered as an extended model for describing generalized black diholes as dyons. We derive the explicit functional form of the horizon half-length parameter as a function of the Komar parameters: Komar mass , electric/magnetic charge , angular momentum , and a coordinate distance , where the parameters characterize the upper constituent of the system, while are associated with the lower one. The addition of magnetic charges enhances the standard Smarr mass formula in order to take into account their contribution to the mass. The solution contains, as particular cases, two solutions already discussed in the literature.
8 pages, 3 figures, 1 table; accepted in Phys. Rev. D
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