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A (running) bolt for new reasons

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Iosif Benaa, Stefano Giustoa, Clément Ruefa and Nicholas P. Warnerb

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We construct a four-parameter family of smooth, horizonless, stationary solutions of ungauged five-dimensional supergravity by using the four-dimensional Euclidean Schwarzschild metric as a base space and ``magnetizing'' its bolt. We then generalize this to a five-parameter family based upon the Euclidean Kerr-Taub-Bolt. These ``running Bolt'' solutions are necessarily non-static. They also have the same charges and mass as a non-extremal black hole with a classically-large horizon area. Moreover, in a certain regime their mass can decrease as their charges increase. The existence of these solutions supports the idea that the singularities of non-extremal black holes are resolved by low-mass modes that correct the singularity of the classical black hole solution on large (horizon-sized) scales.

Keywords

Black Holes

Black Holes in String Theory

PACS

04.65.+e Supergravity

04.70.Bw Classical black holes

Subjects

Gravitation and cosmology

Dates

Issue 11 (November 2009)

Received 21 September 2009, accepted for publication 27 October 2009

Published 19 November 2009



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