Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1999-07-22
Class.Quant.Grav. 17 (2000) 253-298
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
56 pages, LaTeX2e, 7 eps figures Revised version with an improved treatment of the phase space
Scientific paper
10.1088/0264-9381/17/2/301
A set of boundary conditions defining an undistorted, non-rotating isolated horizon are specified in general relativity. A space-time representing a black hole which is itself in equilibrium but whose exterior contains radiation admits such a horizon. However, the definition is applicable in a more general context, such as cosmological horizons. Physically motivated, (quasi-)local definitions of the mass and surface gravity of an isolated horizon are introduced and their properties analyzed. Although their definitions do not refer to infinity, these quantities assume their standard values in the static black hole solutions. Finally, using these definitions, the zeroth and first laws of black hole mechanics are established for isolated horizons.
Ashtekar Abhay
Beetle Christopher
Fairhurst Stephen
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