Instability of charged and rotating naked singularities

Details Instability of charged and rotating naked singularities Instability of charged and rotating naked singularities

2006-07-13

arxiv.org/abs/gr-qc/0607052v4

Phys.Lett.B644:289-293,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 Pages, RevTex, 2 figures, improved discussion of several points, references added, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.12.004

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.

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