Gravitational wave extraction and outer boundary conditions by perturbative matching

The Binary Black Hole Grand Challenge Alliance: A. M. Abrahams , L. Rezzolla , M. E. Rupright , A. Anderson , P. Anninos , T. W. Baumgarte , N. T. Bishop , S. R. Brandt

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J. C. Browne K. Camarda M. W. Choptuik G. B. Cook C. R. Evans L. S. Finn G. Fox R. Gomez T. Haupt M. F. Huq L. E. Kidder S. Klasky P. Laguna W. Landry L. Lehner J. Lenaghan R. L. Marsa J. Masso R. A. Matzner S. Mitra P. Papadopoulos M. Parashar F. Saied P. E. Saylor M. A. Scheel E. Seidel S. L. Shapiro D. Shoemaker L. Smarr B. Szilagyi S. A. Teukolsky M. H. P. M. van Putten P. Walker J. Winicour J. W. York Jr

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classification 🌀 gr-qc

keywords gravitationalmethodboundarycodeconditionsnumericalouterrelativity

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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.

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Gravitational wave extraction and outer boundary conditions by perturbative matching

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