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Effective-one-body model for black-hole binaries with generic mass ratios and spins

MPS-Authors
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Taracchini,  Andrea
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Buonanno,  A.
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
Maryland Center for Fundamental Physics & Joint Space-Science Institute, Department of Physics, University of Maryland;

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Hinderer,  Tanja
Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1311.2544.pdf
(Preprint), 598KB

PhysRevD.89.061502.pdf
(Any fulltext), 766KB

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Citation

Taracchini, A., Buonanno, A., Pan, Y., Hinderer, T., Boyle, M., Hemberger, D. A., et al. (2014). Effective-one-body model for black-hole binaries with generic mass ratios and spins. Physical Review D, 89(6): 061502. doi:10.1103/PhysRevD.89.061502.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0023-F6AC-D
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 20Msun and 200Msun, the effective-one-body nonprecessing (dominant mode) waveforms have overlaps 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. Moreover, without further calibration, we show that the precessing effective-one-body (dominant mode) waveforms have overlaps above 97% with two very long, strongly precessing numerical-relativity waveforms, when maximizing only on the initial phase and time.