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arXiv 1005.0551gr-qc
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自旋合并双星的完全唯象引力波形

Complete phenomenological gravitational waveforms from spinning coalescing binaries

R. Sturani, S. Fischetti, L. Cadonati, G. M. Guidi, J. Healy, D. Shoemaker, A. Viceré

摘要:

从合并的双星中寻找引力波通常是由LIGO-Virgo合作通过匹配滤波进行的,这需要对信号有详细的了解。完整的分析合并波形目前只适用于非旋进二元系统。在本文中,我们介绍了一般自旋系统的主导四极模的完整的唯象波形。这些波形是通过桥接解析已知的inspiral相位之间的差距,描述的自旋泰勒(T4)近似的限制波形近似,和衰荡阶段通过一个现象学的中间阶段,校准通过比较与特定的,数值生成的波形,描述等质量系统与无量纲自旋幅度等于0.6。数值波形和唯象波形之间的重叠积分范围在0.95和0.99之间。

英文摘要:

The quest for gravitational waves from coalescing binaries is customarily performed by the LIGO-Virgo collaboration via matched filtering, which requires a detailed knowledge of the signal. Complete analytical coalescence waveforms are currently available only for the non-precessing binary systems. In this paper we introduce complete phenomenological waveforms for the dominant quadrupolar mode of generically spinning systems. These waveforms are constructed by bridging the gap between the analytically known inspiral phase, described by spin Taylor (T4) approximants in the restricted waveform approximation, and the ring-down phase through a phenomenological intermediate phase, calibrated by comparison with specific, numerically generated waveforms, describing equal mass systems with dimension-less spin magnitudes equal to 0.6. The overlap integral between numerical and phenomenological waveforms ranges between 0.95 and 0.99.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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