Instability of charged and rotating naked singularities
arXiv:gr-qc/0607052 · doi:10.1016/j.physletb.2006.12.004
Abstract
We provide evidence that ``super-extremal'' black hole space-times (either with charge larger than mass or angular momentum larger than mass), which contain naked singularities, are unstable under linearized perturbations. This is given by an infinite family of exact unstable solutions in the charged non rotating case, and by a set of (unstable) numerical solutions in the rotating case. These results may be relevant to the expectation that these space-times cannot be the endpoint of physical gravitational collapse.
arXiv comment5 Pages, RevTex, 2 figures, improved discussion of several points, references added, to appear in Phys. Lett. B
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