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  Time-domain effective-one-body gravitational waveforms for coalescing compact binaries with nonprecessing spins, tides and self-spin effects

Nagar, A., Bernuzzi, S., Del Pozzo, W., Riemenschneider, G., Akcay, S., Carullo, G., et al. (2018). Time-domain effective-one-body gravitational waveforms for coalescing compact binaries with nonprecessing spins, tides and self-spin effects. Physical Review D, 98: 104052. doi:10.1103/PhysRevD.98.104052.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-AF55-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F7BE-2
Genre: Journal Article

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 Creators:
Nagar, Alessandro, Author
Bernuzzi, Sebastiano, Author
Del Pozzo, Walter, Author
Riemenschneider, Gunnar, Author
Akcay, Sarp, Author
Carullo, Gregorio, Author
Fleig, Philipp, Author
Babak, Stanislav, Author
Tsang, Ka Wa, Author
Colleoni, Marta, Author
Messina, Francesco, Author
Pratten, Geraint, Author
Radice, David, Author
Rettegno, Piero, Author
Agathos, Michalis, Author
Fauchon-Jones, Edward, Author
Hannam, Mark, Author
Husa, Sascha, Author
Dietrich, Tim1, Author              
Cerda-Duran, Pablo, Author
Font, Jose A., AuthorPannarale, Francesco, AuthorSchmidt, Patricia, AuthorDamour, Thibault, Author more..
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We present TEOBResumS, a new effective-one-body (EOB) waveform model for nonprecessing (spin-aligned) and tidally interacting compact binaries.Spin-orbit and spin-spin effects are blended together by making use of the concept of centrifugal EOB radius. The point-mass sector through merger and ringdown is informed by numerical relativity (NR) simulations of binary black holes (BBH) computed with the SpEC and BAM codes. An improved, NR-based phenomenological description of the postmerger waveform is developed.The tidal sector of TEOBResumS describes the dynamics of neutron star binaries up to merger and incorporates a resummed attractive potential motivated by recent advances in the post-Newtonian and gravitational self-force description of relativistic tidal interactions. Equation-of-state dependent self-spin interactions (monopole-quadrupole effects) are incorporated in the model using leading-order post-Newtonian results in a new expression of the centrifugal radius. TEOBResumS is compared to 135 SpEC and 19 BAM BBH waveforms. The maximum unfaithfulness to SpEC data $\bar{F}$ -- at design Advanced-LIGO sensitivity and evaluated with total mass $M$ varying between $10M_\odot \leq M \leq 200 M_\odot$ --is always below $2.5 \times 10^{-3}$ except for a single outlier that grazes the $7.1 \times 10^{-3}$ level. When compared to BAM data, $\bar{F}$ is smaller than $0.01$ except for a single outlier in one of the corners of the NR-covered parameter space, that reaches the $0.052$ level.TEOBResumS is also compatible, up to merger, to high end NR waveforms from binary neutron stars with spin effects and reduced initial eccentricity computed with the BAM and THC codes. The model is designed to generate accurate templates for the analysis of LIGO-Virgo data through merger and ringdown. We demonstrate its use by analyzing the publicly available data for GW150914.

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 Dates: 2018-06-052018-10-282018
 Publication Status: Published in print
 Pages: 39 pages, 36 figures. Extended appendix with discussion of the postmerger fits. Version accepted for publication in Phys. Rev. D
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1806.01772
DOI: 10.1103/PhysRevD.98.104052
URI: http://arxiv.org/abs/1806.01772
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 98 Sequence Number: 104052 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258