Detectability of intermediate-mass black holes in multiband gravitational wave astronomy
Detectability of intermediate-mass black holes in multiband gravitational wave astronomy
复制标题
多波段引力波天文学中中等质量黑洞的可探测性
DOI：
10.1038/s41550-019-0932-7
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发表时间：
2020
期刊：
影响因子：
14.1
通讯作者：
Cutler, Curt
中科院分区：
文献类型：
--
作者：
Jani, Karan;Shoemaker, Deirdre;Cutler, Curt
引力波的直接测量是调查整个宇宙黑洞数量的有力工具。虽然 LIGO 已经探测到质量约为 50M⊙ 的黑洞（参考文献 ），但目前还没有明确的证据表明黑洞的质量范围在 102-5M⊙ 之间。最近的电磁观测暗示存在中等质量黑洞（IMBH），-；然而，他们的群众仍然受到很少的限制。在这里，我们认为，天基和地基引力波探测器的多波段观测将能够在宇宙学距离上调查大量的中等质量黑洞。通过利用合并黑洞的广义相对论模拟和最先进的引力波形模型，我们对具有中等质量黑洞的三组不同的双星进行了分类，并讨论了每组可以观测到的内容。涉及升级的 LIGO 探测器和拟议的空间任务 LISA 的多波段观测将探测 IMBH 双星的吸气、合并和衰荡，直至红移 ≈ 2，如果下一代地面探测器同时运行，则将红移 5推出。为了促进多波段 IMBH 源的研究，我们为各种探测器组合提供了多波段可探测性最大红移的解析关系，作为黑洞质量的函数。我们的研究为未来在多波段引力波天文学时代从中等质量黑洞观测中学到什么铺平了道路。
The direct measurement of gravitational waves is a powerful tool for surveying the population of black holes across the universe. While LIGO has detected black holes as heavy as ~50M⊙(ref. ), there is not yet unambiguous evidence of black holes in the intermediate mass range of 102–5M⊙. Recent electromagnetic observations have hinted towards the existence of intermediate-mass black holes (IMBHs), –; however, their masses remain poorly constrained. Here we argue that multiband observations by space- and ground-based gravitational wave detectors,will be able to survey a broad population of IMBHs at cosmological distances. By utilizing general relativistic simulations of merging black holes and state-of-the-art gravitational waveform models, we classify three distinct populations of binaries with IMBHs and discuss what can be observed about each. Multiband observations involving the upgraded LIGO detector and the proposed space-mission LISA would detect the inspiral, merger and ring-down of IMBH binaries out to redshift ≈ 2, pushing out to redshift ≈ 5 if next-generation ground-based detectors,are operational at the same time. To facilitate studies of multiband IMBH sources, we provide analytic relations for the maximum redshift of multiband detectability, as a function of black hole mass, for various detector combinations. Our study paves the way for future work on what can be learned from IMBH observations in the era of multiband gravitational wave astronomy.
我们可以从黑洞双星的多波段观测中学到什么
DOI：
--
发表时间：
2019
期刊：
ArXiv.org
影响因子：
--
作者：
Cutler, Curt;Berti, Emanuele;Jani, Karan;Kovetz, Ely D.;Randall, Lisa;Vitale, Salvatore;Wong, Kaze W.K.;Holley-Bockelmann, Kelly;Larson, Shane L.;Littenberg, Tyson
通讯作者：
Littenberg, Tyson