Introduction to Isolated Horizons in Numerical Relativity

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We present a coordinate-independent method for extracting mass (M) and angular momentum (J) of a black hole in numerical simulations. This method, based on the isolated horizon framework, is applicable both at late times when the black hole has reached equilibrium, and at early times when the black holes are widely separated. We show how J and M can be determined in numerical simulations in terms of only those quantities which are intrinsic to the apparent horizon. We also present a numerical method for finding the rotational symmetry vector field (required to calculate J) on the horizon.
14 pages, revtex4, 7 figures. Final PRD version

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/196881

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/gr-qc/0206008
 http://arxiv.org/abs/gr-qc/0206008
 Phys.Rev.D67:024018,2003
 doi:10.1103/PhysRevD.67.024018

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arXiv