Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-05-17
Mod.Phys.Lett. A16 (2001) 2143-2150
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, 4 figures, LaTeX; v2 comments, references and acknowledgements added
Scientific paper
10.1142/S0217732301005564
We numerically construct static and spherically symmetric electrically charged black hole solutions in Einstein-Born-Infeld gravity with massive dilaton. The numerical solutions show that the dilaton potential allows many more black hole causal structures than the massless dilaton. We find that depending on the black hole mass and charge and the dilaton mass the black holes can have either one, two, or three horizons. The extremal solutions are also found out. As an interesting peculiarity we note that there are extremal black holes with an inner horizon and with triply degenerated horizon.
Boyadjiev Todor L.
Fiziev Plamen P.
Todorov Michail D.
Yazadjiev Stoytcho S.
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