1. Effective-one-body model for black-hole binaries with generic mass ratios and spins.
- Author
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Taracchini, Andrea, Buonanno, Alessandra, Yi Pan, Hinderer, Tanja, Boyle, Michael, Hemberger, Daniel A., Kidder, Lawrence E., Lovelace, Geoffrey, Mroué, Abdul H., Pfeiffer, Harald P., Scheel, Mark A., Szilágyi, Béla, Taylor, Nicholas W., and Zenginoglu, Anil
- Subjects
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GRAVITATIONAL waves , *BINARY systems (Astronomy) , *BLACK holes , *SIGNAL-to-noise ratio , *ANGULAR momentum (Nuclear physics) , *WAVE analysis - Abstract
Gravitational waves emitted by black-hole binary systems have the highest signal-to-noise ratio in LIGO and Virgo detectors when black-hole spins are aligned with the orbital angular momentum and extremal. For such systems, we extend the effective-one-body inspiral-merger-ringdown waveforms to generic mass ratios and spins calibrating them to 38 numerical-relativity nonprecessing waveforms produced by the SXS Collaboration. The numerical-relativity simulations span mass ratios from 1 to 8, spin magnitudes up to 98% of extremality, and last for 40 to 60 gravitational-wave cycles. When the total mass of the binary is between 20 and 200AiQ, the effective-one-body nonprecessing (dominant mode) waveforms have overlap above 99% (using the advanced-LIGO design noise spectral density) with all of the 38 nonprecessing numerical waveforms, when maximizing only on initial phase and time. This implies a negligible loss in event rate due to modeling. We also show that--without further calibration-- the precessing effective-one-body (dominant mode) waveforms have overlap above 97% with two very long, strongly precessing numerical-relativity waveforms, when maximizing only on the initial phase and time. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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