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Stability of nonspinning effective-one-body model in approximating two-body dynamics and gravitational-wave emission

Pan, Yi and Buonanno, Alessandra and Taracchini, Andrea and Boyle, Michael and Kidder, Lawrence E. and Mroué, Abdul H. and Pfeiffer, Harald P. and Scheel, Mark A. and Szilágyi, Béla and Zenginoğlu, Anıl (2014) Stability of nonspinning effective-one-body model in approximating two-body dynamics and gravitational-wave emission. Physical Review D, 89 (6). Art. No. 061501. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20140424-093323455

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Abstract

The detection of gravitational waves and the extraction of physical information from them requires the prediction of accurate waveforms to be used in template banks. For that purpose, the accuracy of effective-one-body (EOB) waveforms has been improved over the last years by calibrating them to numerical-relativity (NR) waveforms. So far, the calibration has employed a handful of NR waveforms with a total length of ∼30 cycles, the length being limited by the computational cost of NR simulations. Here, we address the outstanding problem of the stability of the EOB calibration with respect to the length of NR waveforms. Performing calibration studies against NR waveforms of nonspinning black-hole binaries with mass ratios 1, 1.5, 5 and 8, and with a total length of ∼60 cycles, we find that EOB waveforms calibrated against either 30 or 60 cycles will be indistinguishable by the advanced detectors Laser Interferometric Gravitational-wave Observatory (LIGO) and Virgo when the signal-to-noise ratio (SNR) is below 110. When extrapolating to a very large number of cycles, using very conservative assumptions, we can conclude that state-of-the-art nonspinning EOB waveforms of any length are sufficiently accurate for parameter estimation with advanced detectors when the SNR is below 20, the mass ratio is below 5 and the total mass is above 20M_⊙. The results are not conclusive for the entire parameter space because of current NR errors.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.89.061501DOIArticle
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.061501PublisherArticle
http://arxiv.org/abs/1311.2565arXivWorking Paper
ORCID:
AuthorORCID
Kidder, Lawrence E.0000-0001-5392-7342
Pfeiffer, Harald P.0000-0001-9288-519X
Additional Information:© 2014 American Physical Society. Received 11 November 2013; published 5 March 2014. A. B., Y. P. and A. T. acknowledge par tial support from NSF Grants No. PHY-0903631 and No. PHY-1208881, and NASA Grant No. NNX09AI81 G. A. T. also acknowledges support from the Maryland Center for Fundamental Physics. A. M. and H. P acknowledge support from NSERC of Canada, from the Canada Research Chairs Program, and from the Canadian Institute for Advanced Research. M. S. and B. S. gratefully acknowledge support from the Sherman Fairchild Foundation and from NSF.
Funders:
Funding AgencyGrant Number
NSFPHY-0903631
NSFPHY-1208881
NASANNX09AI81
Maryland Center for Fundamental PhysicsUNSPECIFIED
NSERC (Canada)UNSPECIFIED
Canada Research Chairs ProgramUNSPECIFIED
Canadian Institute for Advanced ResearchUNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
NSFPHY-106881
NSFPHY-1005655
NSFPHY-1306125
NSFPHY-1005426
Issue or Number:6
Classification Code:PACS: 04.25.D−, 04.25.dg, 04.25.Nx, 04.30.−w
Record Number:CaltechAUTHORS:20140424-093323455
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140424-093323455
Official Citation:Pan, Y., Buonanno, A., Taracchini, A., Boyle, M., Kidder, L. E., Mroué, A. H., . . . Zenginoglu, A. (2014). Stability of nonspinning effective-one-body model in approximating two-body dynamics and gravitational-wave emission. Physical Review D, 89(6), 061501.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45183
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:24 Apr 2014 21:16
Last Modified:09 Mar 2020 13:19

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