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

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Schlagwörter: General Relativity and Quantum Cosmology, gr-qc
 Zusammenfassung: 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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 Datum: 2018-06-052018-10-282018
 Publikationsstatus: Erschienen
 Seiten: 39 pages, 36 figures. Extended appendix with discussion of the postmerger fits. Version accepted for publication in Phys. Rev. D
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
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 Art des Abschluß: -

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Titel: Physical Review D
  Andere : Phys. Rev. D.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Lancaster, Pa. : American Physical Society
Seiten: - Band / Heft: 98 Artikelnummer: 104052 Start- / Endseite: - Identifikator: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258