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arXiv 1012.3894gr-qc
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从偏心紧双星到2PN精度的全解析频域引力波

Full-analytic frequency-domain gravitational wave forms from eccentric compact binaries to 2PN accuracy

Manuel Tessmer, Gerhard Schaefer

摘要:

本文给出了任意质量比的偏心非自旋致密双星在时间傅立叶域中的全解析引力波(GW)形式。最近描述的半解析性质,即在数值上反演高阶开普勒方程但保持所有其他计算解析的要求,是第一次避免的。这篇文章是对之前一篇文章(Tessmer和Schäfer,Phys. Rev. D 82,124064(2010))的补充,在谐波GW振幅和保守轨道动力学方面达到了第二后牛顿(2PN)阶。给出了调和坐标系下开普勒方程的全解析反演公式,以及偏心距平三角函数关于平均距平正弦和余弦的解析时间傅里叶展开式。不考虑尾项。

英文摘要:

The article provides full-analytic gravitational wave (GW) forms for eccentric nonspinning compact binaries of arbitrary mass ratio in the time Fourier domain. The semi-analytical property of recent descriptions, i.e. the demand of inverting the higher-order Kepler equation numerically but keeping all other computations analytic, is avoided for the first time. The article is a completion of a previous one (Tessmer and Schäfer, Phys. Rev. D 82, 124064 (2010)) to second post-Newtonian (2PN) order in the harmonic GW amplitude and conservative orbital dynamics. A fully analytical inversion formula of the Kepler equation in harmonic coordinates is provided, as well as the analytic time Fourier expansion of trigonometric functions of the eccentric anomaly in terms of sines and cosines of the mean anomaly. Tail terms are not considered.

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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