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GR: Fachverband Gravitation und Relativitätstheorie

GR 1: Schwarze Löcher I

GR 1.2: Talk

Monday, February 25, 2013, 14:15–14:30, HS 6

Gauss-Bonnet solitons and black holes in 5d Anti-de Sitter spacetime — •Sardor Tojiev¹, Betti Hartmann¹, and Yves Brihaye² — ¹School of Engineering and Science, Jacobs University Bremen, 28759 Bremen, Germany — ²Physique-Mathematique, Universite de Mons-Hainaut, 7000 Mons, Belgium

We have studied 5-dimensional solitons and black holes in Gauss-Bonnet gravity coupled to electromagnetic and scalar fields. We find that the presence of the Gauss-Bonnet term has an influence on the pattern of soliton solutions for small enough values of the electric charge. We also present new results for rotating Gauss-Bonnet black holes with and without scalar hair. We find that although solitons cannot be made rotating properly with non-vanishing angular momentum, the hairy black holes can be generalized to rotating solutions characterized by the angular velocity on the horizon. Our numerical results show that some branches of soliton solutions disappear when the Gauss-Bonnet coupling constant is large enough.