Distorted Five-dimensional Electrically Charged Black Holes

Abstract

We derive and study distorted, five-dimensional, electrically charged, non-extremal black holes on the example of a static and "axisymmetric" black hole distorted by external, electrically neutral matter.The solution satisfies Einstein-Maxwell equations which admits an ${\mathbb{R}}^1\times U(1)\times U(1)$ isometry group. The inner horizon remains regular if the distortion fields are finite and smooth at the outer horizon. There exists a certain duality transformation between the inner and the outer horizon surfaces which links surface gravity, electrostatic potential, and space-time curvature invariants calculated at the black hole horizons. The product of the inner and outer horizon areas depends only on the black hole's electric charge and the geometric mean of the areas is the upper (lower) limit for the inner (outer) horizon area. The horizon areas, electrostatic potential, and surface gravity satisfy the Smarr formula. We formulated the zeroth and the first laws of mechanics and thermodynamics of the distorted black hole and found a correspondence between the global and local forms of the first law. To illustrate the effect of distortion we consider the dipole-monopole and quadrupole-quadrupole distortion fields. The relative change in the Kretschamnn scalar due to the distortion is greater at the outer horizon than at the inner one. Calculating the maximal proper time of free fall from the outer to the inner horizons we show that the distortion can noticeably change the black hole interior. The change depends on type and strength of distortion fields. In particular, due to the types of distortion fields considered here the black hole horizons can either come arbitrarily close to or move far from each other.

39 pages, 10 figures

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• Stationary Black Holes as Holographs II
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• Myers-Perry Black Hole in an External Gravitational Field
• Magnetized Black Holes in an External Gravitational Field
• Quasi-periodic oscillations from the accretion disk around distorted black holes
• A Distorted Black Ring
• Universal entropy relations: entropy formulae and entropy bound
• Thermodynamic of Distorted Reissner-Nordström Black Holes in Five-dimensions
• Angular Momentum-Free of the Entropy Relations for Rotating Kaluza-Klein Black Holes