Non-existence of stationary two-black-hole configurations: The degenerate case
arXiv:1103.5248 · doi:10.1007/s10714-011-1228-0
Abstract
In a preceding paper we examined the question whether the spin-spin repulsion and the gravitational attraction of two aligned sub-extremal black holes can balance each other. Based on the solution of a boundary value problem for two separate (Killing-) horizons and a novel black hole criterion we were able to prove the non-existence of the equilibrium configuration in question. In this paper we extend the non-existence proof to extremal black holes.
18 pages, 2 figures
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