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  Frequency-domain gravitational waves from non-precessing black-hole binaries. I. New numerical waveforms and anatomy of the signal

Husa, S., Khan, S., Hannam, M., Pürrer, M., Ohme, F., Forteza, X. J., et al. (2016). Frequency-domain gravitational waves from non-precessing black-hole binaries. I. New numerical waveforms and anatomy of the signal. Physical Review D, 93: 044006. doi:10.1103/PhysRevD.93.044006.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-12D5-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-ED6B-C
Genre: Journal Article

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 Creators:
Husa, Sascha, Author
Khan, Sebastian1, Author              
Hannam, Mark, Author
Pürrer, Michael2, Author              
Ohme, Frank, Author
Forteza, Xisco Jiménez, Author
Bohé, Alejandro2, Author              
Affiliations:
1Binary Merger Observations and Numerical Relativity, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_2461691              
2Astrophysical 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: In this paper we discuss the anatomy of frequency-domain gravitational-wave signals from non-precessing black-hole coalescences with the goal of constructing accurate phenomenological waveform models. We first present new numerical-relativity simulations for mass ratios up to 18 including spins. From a comparison of different post-Newtonian approximants with numerical-relativity data we select the uncalibrated SEOBNRv2 model as the most appropriate for the purpose of constructing hybrid post-Newtonian/numerical-relativity waveforms, and we discuss how we prepare time-domain and frequency-domain hybrid data sets. We then use our data together with results in the literature to calibrate simple explicit expressions for the final spin and radiated energy. Equipped with our prediction for the final state we then develop a simple and accurate merger-ringdown-model based on modified Lorentzians in the gravitational wave amplitude and phase, and we discuss a simple method to represent the low frequency signal augmenting the TaylorF2 post-Newtonian approximant with terms corresponding to higher orders in the post-Newtonian expansion. We finally discuss different options for modelling the small intermediate frequency regime between inspiral and merger-ringdown. A complete phenomenological model based on the present work is presented in a companion paper.

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 Dates: 2015-08-282015-09-252016
 Publication Status: Published in print
 Pages: 17 pages, 18 figures ,minor edits to text
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1508.07250
DOI: 10.1103/PhysRevD.93.044006
URI: http://arxiv.org/abs/1508.07250
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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: 93 Sequence Number: 044006 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258