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Constructing gravitational waves from generic spin-precessing compact binary inspirals

Chatziioannou, Katerina and Klein, Antoine and Yunes, Nicolás and Cornish, Neil (2017) Constructing gravitational waves from generic spin-precessing compact binary inspirals. Physical Review D, 95 (10). Art. No. 104004. ISSN 2470-0010. doi:10.1103/physrevd.95.104004.

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The coalescence of compact objects is one of the most promising sources, as well as the source of the first detections, of gravitational waves for ground-based interferometric detectors, such as advanced LIGO and Virgo. Generically, compact objects in binaries are expected to be spinning with spin angular momenta misaligned with the orbital angular momentum, causing the orbital plane to precess. This precession adds rich structure to the gravitational waves, introducing such complexity that an analytic closed-form description has been unavailable until now. We here construct the first closed-form frequency-domain gravitational waveforms that are valid for generic spin-precessing quasicircular compact binary inspirals. We first construct time-domain gravitational waves by solving the post-Newtonian precession equations of motion with radiation reaction through multiple scale analysis. We then Fourier transform these time-domain waveforms with the method of shifted uniform asymptotics to obtain closed-form expressions for frequency-domain waveforms. We study the accuracy of these analytic, frequency-domain waveforms relative to waveforms obtained by numerically evolving the post-Newtonian equations of motion and find that they are suitable for unbiased parameter estimation for 99.2%(94.6%) of the binary configurations we studied at a signal-to-noise ratio of 10(25). These new frequency-domain waveforms could be used for detection and parameter estimation studies due to their accuracy and low computational cost.

Item Type:Article
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URLURL TypeDescription Paper
Chatziioannou, Katerina0000-0002-5833-413X
Yunes, Nicolás0000-0001-6147-1736
Cornish, Neil0000-0002-7435-0869
Additional Information:© 2017 American Physical Society. Received 11 March 2017; published 5 May 2017. We would like to thank Emanuele Berti, Mike Kesden, Sylvain Marsat, and Frank Ohme for helpful discussions. K. C. acknowledges support from the Onassis Foundation. N. Y. acknowledges support NSF CAREER Grant No. PHY-1250636. N. C. acknowledges support from the NSF Award No. PHY-1306702. N. C. and N. Y. acknowledge support from NASA Grant No. NNX16AB98G. A. K. is supported by NSF CAREER Grant No. PHY-1055103, by FCT contract IF/00797/2014/CP1214/CT0012 under the IF2014 Programme, and by the H2020-MSCA-RISE-2015 Grant No. StronGrHEP-690904. This work was supported by the Centre National d’Études Spatiales.
Funding AgencyGrant Number
Alexander S. Onassis Public Benefit FoundationUNSPECIFIED
Fundação para a Ciência e a Tecnologia (FCT)IF/00797/2014/CP1214/CT0012
European Research Council (ERC)StronGrHEP-690904
Centre National d'Études Spatiales (CNES)UNSPECIFIED
Issue or Number:10
Record Number:CaltechAUTHORS:20200805-070347840
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104741
Deposited By: Tony Diaz
Deposited On:05 Aug 2020 18:36
Last Modified:16 Nov 2021 18:34

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