期刊
PHYSICAL REVIEW D
卷 87, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.024009
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资金
- NSERC of Canada
- Canada Research Chairs Program
- Canadian Institute for Advanced Research
- Sherman Fairchild Foundation
- NSF at Cornell [PHY-0969111, PHY-1005426]
- NSF at Caltech [PHY-1068881, PHY-1005655]
- NSF [PHY-0960291]
- NSF XSEDE network [TG-PHY990007N]
- Canada Foundation for Innovation
- Compute Canada
- Government of Ontario
- Ontario Research Fund-Research Excellence
- University of Toronto
- Division Of Physics
- Direct For Mathematical & Physical Scien [1005426] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1068881, 0960291, 969111] Funding Source: National Science Foundation
This article studies sufficient accuracy criteria of hybrid post-Newtonian (PN) and numerical relativity (NR) waveforms for parameter estimation of strong binary black-hole sources in second-generation ground-based gravitational-wave detectors. We investigate equal-mass nonspinning binaries with a new 33-orbit NR waveform, as well as unequal-mass binaries with mass ratios 2, 3, 4 and 6. For equal masses, the 33-orbit NR waveform allows us to recover previous results and to extend the analysis toward matching at lower frequencies. For unequal masses, the errors between different PN approximants increase with mass ratio. Thus, at 3.5 PN, hybrids for higher-mass-ratio systems would require NR waveforms with many more gravitational-wave cycles to guarantee no adverse impact on parameter estimation. Furthermore, we investigate the potential improvement in hybrid waveforms that can be expected from fourth-order post-Newtonian waveforms and find that knowledge of this fourth post-Newtonian order would significantly improve the accuracy of hybrid waveforms. DOI: 10.1103/PhysRevD.87.024009
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