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  On the accuracy and precision of numerical waveforms: Effect of waveform extraction methodology

Chu, T., Fong, H., Kumar, P., Pfeiffer, H. P., Boyle, M., Hemberger, D. A., et al. (2016). On the accuracy and precision of numerical waveforms: Effect of waveform extraction methodology. Classical and quantum gravity, 33(16): 165001. doi:10.1088/0264-9381/33/16/165001.

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 Urheber:
Chu, Tony, Autor
Fong, Heather, Autor
Kumar, Prayush, Autor
Pfeiffer, Harald P.1, Autor
Boyle, Michael, Autor
Hemberger, Daniel A., Autor
Kidder, Lawrence E., Autor
Scheel, Mark A., Autor
Szilagyi, Bela, Autor
Affiliations:
1AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, ou_24008              

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc
 Zusammenfassung: We present a new set of 95 numerical relativity simulations of non-precessing binary black holes (BBHs). The simulations sample comprehensively both black-hole spins up to spin magnitude of 0.9, and cover mass ratios 1 to 3. The simulations cover on average 24 inspiral orbits, plus merger and ringdown, with low initial orbital eccentricities $e<10^{-4}$. A subset of the simulations extends the coverage of non-spinning BBHs up to mass ratio $q=10$. Gravitational waveforms at asymptotic infinity are computed with two independent techniques, extrapolation, and Cauchy characteristic extraction. An error analysis based on noise-weighted inner products is performed. We find that numerical truncation error, error due to gravitational wave extraction, and errors due to the finite length of the numerical waveforms are of similar magnitude, with gravitational wave extraction errors somewhat dominating at noise-weighted mismatches of $\sim 3\times 10^{-4}$. This set of waveforms will serve to validate and improve aligned-spin waveform models for gravitational wave science.

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 Datum: 2015-12-212016-10-142016
 Publikationsstatus: Erschienen
 Seiten: 22 pages, 9 figures
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Titel: Classical and quantum gravity
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Bristol, U.K. : Institute of Physics
Seiten: - Band / Heft: 33 (16) Artikelnummer: 165001 Start- / Endseite: - Identifikator: ISSN: 0264-9381
CoNE: https://pure.mpg.de/cone/journals/resource/954925513480_1