Black Holes in the Dilatonic Einstein-Gauss-Bonnet Theory in Various Dimensions. I : Asymptotically Flat Black Holes(Astrophysics and Cosmology)
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概要
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We study spherically symmetric, asymptotically flat black hole solutions in the low-energy effective heterotic string theory, which is the Einstein gravity with Gauss-Bonnet term and the dilaton, in various dimensions. We derive the field equations for suitable ansatz for general D dimensions and construct black hole solutions of various masses numerically in D=4,5,6 and 10 dimensional spacetime with (D-2)-dimensional hypersurface with positive constant curvature. A detailed comparison with the non-dilatonic solutions is made. We also examine the thermodynamic properties of the solutions. It is found that the dilaton has significant effects on the black hole solutions, and we discuss physical consequences.
- 理論物理学刊行会の論文
- 2008-09-25
著者
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TORII Takashi
Department of General Education, Osaka Institute of Technology
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Torii Takashi
Department Of General Education Osaka Institute Of Technology
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Guo Zong-kuan
Department Of Physics Kinki University:fakultat Fur Physik Universitat Bielefeld
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Guo Zong-kuan
Department Of Physics Kinki University
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Ohta Nobuyoshi
Department Of Physics Kinki University
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Ohta Nobuyoshi
Department Of Physics Graduate School Of Science Osaka University
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GUO Zong-Kuan
Department of Physics, Kinki University:Fakultat fur Physik, Universitat Bielefeld
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