4dimensional dilaton black holes with cosmological constant
Abstract
Static and spherically symmetric black hole solutions with nonzero 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 ReissnerNordstrømde Sitter black hole with positive cosmological horizon has 3 regular horizons.
 Publication:

arXiv eprints
 Pub Date:
 June 1994
 arXiv:
 arXiv:hepth/9406126
 Bibcode:
 1994hep.th....6126O
 Keywords:

 High Energy Physics  Theory
 EPrint:
 15 pages, UT679