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The near-horizon geometry of dilaton-axion black holes

G. Clement·D. Gal'tsov
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Abstract

Static black holes of dilaton-axion gravity become singular in the extreme limit, which prevents a direct determination of their near-horizon geometry. This is addressed by first taking the near-horizon limit of extreme rotating NUT-less black holes, and then going to the static limit. The resulting four-dimensional geometry may be lifted to a Bertotti-Robinson-like solution of six-dimensional vacuum gravity, which also gives the near-horizon geometry of extreme Kaluza-Klein black holes in five dimensions.

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BibTeXRIS

G. Clement, D. Gal'tsov. 2001-01-10. The near-horizon geometry of dilaton-axion black holes. https://doi.org/10.1142/9789812777386_0207

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