Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-06-29
Physics
High Energy Physics
High Energy Physics - Theory
4 pages, 3 figures. Wrong statements on stability based on error incaculations corrected. New references added
Scientific paper
We analyze some exact chain-shaped black hole solutions in 5-dimensional spacetime. Unlike usual black string and black ring solutions, the topology of the horizons of the new solutions are neither $\mathbb{R}\times R^{2}$ nor $S^1\times S^2$ but rather like several topological spheres concatenating each other at single points. The shape of the horizon suggests the name \emph{black chain of pearls} on which each \emph{pearl} is a topological 3-sphere on the chain. In addition to the usual black hole hairs, the number of pearls can be viewed as a new hair of the black chain of pearls.
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