The overlap of numerical relativity, perturbation theory and post-Newtonian theory in the binary black hole problem

Details The overlap of numerical relativity, perturbation theory and post-Newtonian theory in the binary black hole problem The overlap of numerical relativity, perturbation theory and post-Newtonian theory in the binary black hole problem

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aps..apr.d4002l&link_type=abstract

American Physical Society, APS April Meeting 2012, March 31-Apr 3, 2012, abstract #D4.002

Physics

Scientific paper

Inspiralling and coalescing binary black holes are among the most promising sources of gravitational radiation to be detected by current ground-based interferometers and future space-based antennas. The detection and analysis of the signals from these highly relativistic sources require very accurate theoretical predictions, for use as gravitational-wave templates to be compared to the output of the detectors. The orbital dynamics and gravitational-wave emission of such systems can be investigated using a variety of approximation schemes and numerical methods in General Relativity: the post-Newtonian formalism, black hole perturbation theory, numerical relativity, and the effective-one-body framework. The last years have seen an increasing amount of activity at the multiple interfaces of all of these analytical and numerical techniques. I will review this recent work, emphasizing the use of coordinate invariant relations to perform meaningful comparisons. Some highlights include (i) the remarkable agreement between the predictions of the various methods, and (ii) the surprising observation that perturbation theory may turn out to be useful in the modelling of comparable mass binary black holes.

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