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arXiv 1809.03528astro-ph.COgr-qc
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GW LSS:寻找并合双星黑洞的祖先

GW$\times$LSS: Chasing the Progenitors of Merging Binary Black Holes

Giulio Scelfo, Nicola Bellomo, Alvise Raccanelli, Sabino Matarrese, Licia Verde

摘要:

最近通过它们的引力波信号探测到的恒星质量合并的双黑洞是恒星还是原始起源的?探索这个问题将对我们理解宇宙有深远的影响,包括暗物质的性质,早期宇宙和恒星演化。我们建立在这样的想法,即合并的二元黑洞的聚类特性可以提供有关二元形成机制和起源的信息。星系与引力波星表的相互关联携带着黑洞合并是否更紧密地追踪暗物质的分布--这表明了原始起源--或在明亮和巨大的星系中隐藏的恒星的分布--这表明了恒星的起源。我们预测了几个即将到来的和未来的引力波干涉仪和星系调查,包括,在这样的分析中,第一次,不同的合并率,透镜放大率和其他广义相对论效应的准确建模这样的信号的可探测性。我们的研究结果表明,即将进行的实验可以让我们测试仍然可行的模型研究的大部分参数空间,并揭示了更多的光的问题,二元黑洞的起源和演化。

英文摘要:

Are the stellar-mass merging binary black holes, recently detected by their gravitational wave signal, of stellar or primordial origin? Answering this question will have profound implications for our understanding of the Universe, including the nature of dark matter, the early Universe and stellar evolution. We build on the idea that the clustering properties of merging binary black holes can provide information about binary formation mechanisms and origin. The cross-correlation of galaxy with gravitational wave catalogues carries information about whether black hole mergers trace more closely the distribution of dark matter -- indicative of primordial origin -- or that of stars harboured in luminous and massive galaxies -- indicative of a stellar origin. We forecast the detectability of such signal for several forthcoming and future gravitational wave interferometers and galaxy surveys, including, for the first time in such analyses, an accurate modelling for the different merger rates, lensing magnification and other general relativistic effects. Our results show that forthcoming experiments could allow us to test most of the parameter space of the still viable models investigated, and shed more light on the issue of binary black hole origin and evolution.

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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