Charged rotating Kaluza-Klein black holes in dilaton gravity
- Institut fuer Physik, Universitaet Oldenburg, D-26111 Oldenburg (Germany)
- Department of Mathematics and Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)
- Department of Physics, Shahid Bahonar University, Kerman 76175 (Iran, Islamic Republic of)
We obtain a class of slowly rotating charged Kaluza-Klein black hole solutions of the five-dimensional Einstein-Maxwell-dilaton theory with arbitrary dilaton coupling constant. At infinity, the spacetime is effectively four dimensional. In the absence of the squashing function, our solution reduces to the five-dimensional asymptotically flat slowly rotating charged dilaton black hole solution with two equal angular momenta. We calculate the mass, the angular momentum, and the gyromagnetic ratio of these rotating Kaluza-Klein dilaton black holes. It is shown that the dilaton field and the nontrivial asymptotic structure of the solutions modify the gyromagnetic ratio of the black holes. We also find that the gyromagnetic ratio crucially depends on the dilaton coupling constant, {alpha}, and decreases with increasing {alpha} for any size of the compact extra dimension.
- OSTI ID:
- 21409290
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevD.81.044001; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Rotating nonasymptotically flat black rings in charged dilaton gravity
Rotating black holes in Einstein-Maxwell-dilaton gravity
Related Subjects
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANGULAR MOMENTUM
ASYMPTOTIC SOLUTIONS
BLACK HOLES
COUPLING CONSTANTS
EINSTEIN-MAXWELL EQUATIONS
FOUR-DIMENSIONAL CALCULATIONS
GRAVITATION
GYROMAGNETIC RATIO
KALUZA-KLEIN THEORY
MANY-DIMENSIONAL CALCULATIONS
MASS
SIMULATION
SPACE-TIME
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
MATHEMATICAL SOLUTIONS
UNIFIED-FIELD THEORIES