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arXiv 1802.02586astro-ph.HEgr-qc
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地面天文台探测恒星引力波透镜效应

Detecting Stellar Lensing of Gravitational Waves with Ground-Based Observatories

Pierre Christian, Salvatore Vitale, Abraham Loeb

摘要:

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$\sim 30 M_\odot$提供的引力波观测的信噪比为$\sim30$。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,我们讨论了多星透镜效应的可能性,就像引力辐射穿过星系核或密集星团的情况一样。

英文摘要:

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.

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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