Accurate effective-one-body waveforms of inspiralling and coalescing black-hole binaries

Show simple item record Damour, Thibault Nagar, Alessandro Hannam, Mark Husa, Sascha Bruegmann, Bernd 2017-08-29T09:14:24Z 2017-08-29T09:14:24Z 2008
dc.identifier.citation Damour, T., Nagar, A., Hannam, M., Husa, S. and Brügmann, B. (2008) 'Accurate effective-one-body waveforms of inspiralling and coalescing black-hole binaries', Physical Review D, 78(4), 044039 (24pp). doi: 10.1103/PhysRevD.78.044039 en
dc.identifier.volume 78
dc.identifier.issued 4
dc.identifier.issn 2470-0010
dc.identifier.issn 2470-0029
dc.identifier.doi 10.1103/PhysRevD.78.044039
dc.description.abstract The effective-one-body (EOB) formalism contains several flexibility parameters, notably a(5), upsilon(pole) and (a) over bar (RR). We show here how to jointly constrain the values of these parameters by simultaneously best-fitting the EOB waveform to two, independent, numerical relativity (NR) simulations of inspiralling and/or coalescing binary black-hole systems: published Caltech-Cornell inspiral data (considered for gravitational wave frequencies Mw <= 0.1) on one side, and newly computed coalescence data on the other side. The resulting, approximately unique, "best-fit" EOB waveform is then shown to exhibit excellent agreement with NR coalescence data for several mass ratios. The dephasing between this best-fit EOB waveform and published Caltech-Cornell inspiral data is found to vary between -0.0014 and +0.0008 radians over a time span of similar to 2464M up to gravitational wave frequency Mw = 0.1, and between +0.0013 and -0.0185 over a time span of 96M after Mw = 0.1 up to Mw = 0. 1565. The dephasings between EOB and the new coalescence data are found to be smaller than: (i) +/- 0.025 radians over a time span of 730M (11 cycles) up to merger, in the equal-mass case,and (ii) +/- 0.05 radians over a time span of about 950M ( 17 cycles) up to merger in the 2:1 mass-ratio case. These new results corroborate the aptitude of the EOB formalism to provide accurate representations of general relativistic waveforms, which are needed by Currently operating gravitational wave detectors. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society en
dc.rights © 2008, American Physical Society en
dc.subject Gravitational-radiation en
dc.subject Initial data en
dc.subject Compact binaries en
dc.subject Circular orbit en
dc.subject PArticle (peer-reviewed) en
dc.subject Transformations en
dc.subject Perturbations en
dc.subject Spacetimes en
dc.subject Formalism en
dc.title Accurate effective-one-body waveforms of inspiralling and coalescing black-hole binaries en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Mark Hannam, Physics, University College Cork, Cork, Ireland. +353-21-490-3000 en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000259368500087
dc.description.status Peer reviewed en
dc.identifier.journaltitle Physical Review D en
dc.identifier.articleid 44039

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