Gravitational wave extraction and outer boundary conditions by perturbative matching
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Abstract: (arXiv)
We present a method for extracting gravitational radiation from a three-dimensional numerical relativity simulation and, using the extracted data, to provide outer boundary conditions. The method treats dynamical gravitational variables as nonspherical perturbations of Schwarzschild geometry. We discuss a code which implements this method and present results of tests which have been performed with a three dimensional numerical relativity code.- black hole: pair
- gravitational radiation
- general relativity
- boundary condition
- perturbation theory
- dimension: 3
- geometry: Schwarzschild
- numerical calculations
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