Detecting stellar lensing of gravitational waves with ground-based observatories
Detecting stellar lensing of gravitational waves with ground-based observatories
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DOI：
10.1103/physrevd.98.103022
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发表时间：
2018-02
影响因子：
5
通讯作者：
P. Christian;S. Vitale;A. Loeb
中科院分区：
文献类型：
--
作者：
P. Christian;S. Vitale;A. Loeb
我们研究了地面引力波观测站探测恒星质量透镜引起的引力波透镜事件的能力。我们表明，LIGO和处女座拥有所需的灵敏度，以检测透镜的质量小到$\sim 30 M_\odot$提供的引力波观察到的信噪比为$\sim 30 $。第三代天文台将允许探测质量为$\sim 1 M_\odot$的引力波透镜。最后，我们讨论了引力辐射通过星系核或密集星星团时，多星透镜效应的可能性。
We investigate the ability of ground based gravitational wave observatories to detect gravitational wave lensing events caused by stellar mass lenses. We show that LIGO and Virgo possess the sensitivities required to detect lenses with masses as small as $\sim 30 M_\odot$ provided that the gravitational wave is observed with a signal-to-noise ratio of $\sim30$. Third generation observatories will allow detection of gravitational wave lenses with masses of $\sim 1 M_\odot$. Finally, we discuss the possibility of lensing by multiple stars, as is the case if the gravitational radiation is passing through galactic nucleus or a dense star cluster.