BHT2 - Self-Graviting Systems (black Rings and Black Strings) |
Speaker_ |
Maeda, Hideki |
Co-autors |
Naresh Dadhich |
Talk _ |
Kaluza-Klein black hole with gravitational charge in Einstein-Gauss-Bonnet gravity |
Abstract _ |
We obtain a new exact black-hole solution in Einstein-Gauss-Bonnet gravity with a cosmological constant which bears a specific relation to the Gauss-Bonnet coupling constant. The spacetime is a product of the usual 4-dimensional manifold with a (n-4)-dimensional space of constant negative curvature, i.e., its topology is locally $M^n \approx M^4 \times H^{n-4}$. The solution has two parameters and asymptotically approximates to the field of a charged black hole in anti-de Sitter spacetime. The most interesting and remarkable feature is that the Gauss-Bonnet term acts like a Maxwell source for large $r$ while at the other end it regularizes the metric and weakens the central singularity. |