4-dimensional dilaton black holes with cosmological constant

Details 4-dimensional dilaton black holes with cosmological constant 4-dimensional dilaton black holes with cosmological constant

1994-06-19

arxiv.org/abs/hep-th/9406126v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, UT-679

Scientific paper

Static and spherically symmetric black hole solutions with non-zero cosmological constant are investigated. A formal power series solution is found. It is proved that the number of regular horizons is less than or equal to 2 for positive cosmological constant and is less than or equal to 1 for negative cosmological constant. This shows a striking contrast to the fact that the Reissner-Nordstr{\o}m-de Sitter black hole with positive cosmological horizon has 3 regular horizons.

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