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GR: Fachverband Gravitation und Relativitätstheorie
GR 7: Schwarze Löcher
GR 7.2: Talk
Wednesday, March 11, 2009, 17:05–17:25, A214
Rotating Einstein-Maxwell-Dilaton Black Holes — Burkhard Kleihaus1, •Jutta Kunz1, Francisco Navarro-Lerida2, and Jan Viebahn3 — 1Universität Oldenburg — 2Universidad Complutense de Madrid — 3Universität Kiel
We construct numerically asymptotically flat rotating black holes in Einstein-Maxwell-dilaton theory in 4 and higher dimensions for arbitrary dilaton coupling constant. We focus on higher odd dimensions and equal angular momenta, where the angular dependence can then be treated explicitly. We discuss the global and horizon properties of these black holes and compare to the Einstein-Maxwell and Kaluza-Klein cases. In 4 dimensions the black holes can carry both electric and magnetic charge, giving rise to counterrotating horizons beyond a critical value of the dilaton coupling strength.