Where post-Newtonian and numerical-relativity waveforms meet

  title={Where post-Newtonian and numerical-relativity waveforms meet},
  author={Mark D. Hannam and Sascha Husa and Jos{\'e} A. Gonz{\'a}lez and Ulrich Sperhake and Bernd Bruegmann},
  journal={Physical Review D},
We analyze numerical-relativity (NR) waveforms that cover nine orbits (18 gravitational-wave cycles) before merger of an equal-mass system with low eccentricity, with numerical uncertainties of 0.25 radians in the phase and 2% in the amplitude; such accuracy allows a direct comparison with post-Newtonian (PN) waveforms. We focus on waveforms predicted by one of the PN approximants that has been proposed for use in gravitational-wave data analysis, restricted 3.5PN TaylorT1, and compare these… Expand
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