Matching post-Newtonian and numerical relativity waveforms: Systematic errors and a new phenomenological model for nonprecessing black hole binaries
Matching post-Newtonian and numerical relativity waveforms: Systematic errors and a new phenomenological model for nonprecessing black hole binaries
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DOI：
10.1103/physrevd.82.064016
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发表时间：
2010-05
影响因子：
5
通讯作者：
L. Santamaría;F. Ohme;P. Ajith;B. Brügmann;N. Dorband;M. Hannam;S. Husa;P. Mösta;D. Pollney-D.-Poll
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文献类型：
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作者：
L. Santamaría;F. Ohme;P. Ajith;B. Brügmann;N. Dorband;M. Hannam;S. Husa;P. Mösta;D. Pollney-D.-Poll
提出了一个新的非旋进旋转黑洞双星的旋进和合并唯象引力波形模型。我们的方法是基于后牛顿inspiral波形与基于数值相对论的二元黑洞合并波形的频域匹配。我们量化的各种可能的来源，在匹配后牛顿和数值相对论波形中出现的系统误差，我们使用的匹配标准的基础上最大限度地减少这些错误，我们发现，主要的错误来源是那些在合并附近的后牛顿波形。的nonprecessing黑洞双星的引力辐射的主导模式的解析公式，捕获的混合波形的现象。它在当前引力波搜索中的实现应该允许对其他吸气合并振铃波形族进行交叉检查，并提高引力波搜索的范围。
We present a new phenomenological gravitational waveform model for the inspiral and coalescence of nonprecessing spinning black hole binaries. Our approach is based on a frequency-domain matching of post-Newtonian inspiral waveforms with numerical relativity based binary black hole coalescence waveforms. We quantify the various possible sources of systematic errors that arise in matching post-Newtonian and numerical relativity waveforms, and we use a matching criteria based on minimizing these errors; we find that the dominant source of errors are those in the post-Newtonian waveforms near the merger. An analytical formula for the dominant mode of the gravitational radiation of nonprecessing black hole binaries is presented that captures the phenomenology of the hybrid waveforms. Its implementation in the current searches for gravitational waves should allow cross-checks of other inspiral-merger-ringdown waveform families and improve the reach of gravitational-wave searches.