[0905.3177] Extrapolating gravitational-wave data from numerical simulations

Authors: Michael Boyle, Abdul H. Mroué

Date: 19 May 2009

Abstract: Two complementary techniques are developed for obtaining the asymptotic form of gravitational-wave data at large radii from numerical simulations, in the form of easily implemented algorithms. It is shown that, without extrapolation, near-field effects produce errors in extracted waveforms that can significantly affect LIGO data analysis. The extrapolation techniques are discussed in the context of Newman-Penrose data applied to extrapolation of waveforms from an equal-mass, nonspinning black-hole binary simulation. The results of the two methods are shown to agree within error estimates. The various benefits and deficiencies of the methods are discussed.

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May 22, 2009

0905.3177 (/preprints)
2009-05-22, 09:12 [edit]

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