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arXiv 1302.5249gr-qc
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MG13会议录:关于致密双星吸气中绝热近似的有效性

MG13 proceedings: On the validity of the adiabatic approximation in compact binary inspirals

Andrea Maselli, Leonardo Gualtieri, Francesco Pannarale, Valeria Ferrari

摘要:

我们使用后牛顿-仿射模型来评估绝热近似在模拟致密双星系统相演化中的潮汐效应的有效性。我们计算的潮汐张量,我们估计在2 PN的顺序,和四极张量的动力学演化,发现它们的比率,即潮汐变形性,增加在最后阶段的inspiral。我们推导了这种现象引起的引力波相位修正,并量化了它们对引力波可探测性的影响。

英文摘要:

We use the post-Newtonian-Affine model to assess the validity of the adiabatic approximation in modeling tidal effects in the phase evolution of compact binary systems. We compute the dynamical evolution of the tidal tensor, which we estimate at the 2 PN order, and of the quadrupole tensor, finding that their ratio, i.e. the tidal deformability, increases in the last phases of the inspiral. We derive the gravitational wave phase corrections due to this phenomenon and quantify how they affect gravitational wave detectability.

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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