Non-asymptotically flat, non-AdS dilaton black holes

Details Non-asymptotically flat, non-AdS dilaton black holes Non-asymptotically flat, non-AdS dilaton black holes

2004-05-06

arxiv.org/abs/gr-qc/0405034v2

Phys.Rev. D70 (2004) 084018

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Minor corrections. 2 references added. To appear in Physical Review D

Scientific paper

10.1103/PhysRevD.70.084018

We show that previously known non-asymptotically flat static black hole solutions of Einstein-Maxwell-dilaton theory may be obtained as near-horizon limits of asymptotically flat black holes. Specializing to the case of the dilaton coupling constant $\alpha^2 = 3$, we generate from the non-asymptotically flat magnetostatic or electrostatic black holes two classes of rotating dyonic black hole solutions. The rotating dyonic black holes of the ``magnetic'' class are dimensional reductions of the five-dimensional Myers-Perry black holes relative to one of the azimuthal angles, while those of the ``electric'' class are twisted dimensional reductions of rotating dyonic Rasheed black strings. We compute the quasi-local mass and angular momentum of our rotating dyonic black holes, and show that they satisfy the first law of black hole thermodynamics, as well as a generalized Smarr formula. We also discuss the construction of non-asymptotically flat multi-extreme black hole configurations.

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