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arXiv 2008.01082astro-ph.HEastro-ph.COastro-ph.GAastro-ph.IMgr-qc
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利用时间引力波背景的基础物理学

Fundamental physics using the temporal gravitational wave background

Suvodip Mukherjee, Joseph Silk

摘要:

我们提出了一种新的探测基础物理,涉及到多频电磁(EM)信号和亚阈值GW信号或随机引力波背景(SGWB)起源于合并双星的时间相关性的探索。该方法将用于检测与亚阈值/SGWB信号相关联的EM对应物。利用伴随发射的引力波和电磁信号之间的时间延迟,可以通过研究宇宙膨胀引起的时间延迟膨胀来推断贡献源的红移,前提是引力波信号和电磁信号之间的时间延迟起着标准时钟的作用。对引力波和电磁波不同频率之间不可避免的时域相关性的测量,特别是在伽马射线中,将测试基础物理学和引力理论的几个方面,并为当前和未来的引力波望远镜提供一条新的途径,以研究高红移的二元致密物体的普遍性质。

英文摘要:

We propose a novel probe of fundamental physics that involves the exploration of temporal correlations between the multi-frequency electromagnetic (EM) signal and the sub-threshold GW signal or stochastic gravitational wave background (SGWB) originating from coalescing binaries. This method will be useful for the detection of EM counterparts associated with the sub-threshold/SGWB signal. Exploiting the time delay between concomitant emission of the gravitational wave and EM signals enables inference of the redshifts of the contributing sources by studying the time delay dilation due to cosmological expansion, provided that the time-lag between the emission of gravitational wave signal and the EM signal acts like a standard clock. Measurement of the inevitable time-domain correlations between different frequencies of gravitational and EM waves, most notably in gamma-rays, will test several aspects of fundamental physics and gravitation theory, and enable a new pathway for current and future gravitational wave telescopes to study the universal nature of binary compact objects to high redshifts.

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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