Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO’s and Advanced Virgo’s Third Observing Run
Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO’s and Advanced Virgo’s Third Observing Run
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在 Advanced LIGO 和 Advanced Virgo 第三次观测运行的前半段中搜索太阳质量以下的双星
DOI：
10.1103/physrevlett.129.061104
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发表时间：
2022
影响因子：
8.6
通讯作者：
Agarwal, D.
中科院分区：
文献类型：
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作者：
Abbott, R.;Abbott, T. D.;Acernese, F.;Ackley, K.;Adams, C.;Adhikari, N.;Adhikari, R. X.;Adya, V. B.;Affeldt, C.;Agarwal, D.
我们报告了在2019年4月1日1500 UTC和2019年10月1日1500 UTC之间收集的Advanced LIGO和Advanced Virgo数据中搜索紧凑的二元聚结，其中至少有一个二元组分的质量介于和之间。我们扩展我们以前的分析在两个主要方面：我们包括从处女座探测器的数据，我们允许更多的不平等的质量系统，质量比。我们没有报告任何引力波候选者。最重要的触发器的误报率为。这意味着在这个范围内，太阳下双星的合并率有一个上限，这取决于双星的啁啾质量。我们使用这个上限来推导两个现象学模型，可以产生亚太阳质量的紧凑对象的天体物理约束。一个是等质量原始黑洞的各向同性分布。利用这个模型，我们发现原始黑洞中暗物质在质量范围内所占的比例是。这改善了对原始黑洞丰度的现有限制。另一种是耗散暗物质模型，在这种模型中，费米暗物质可以坍缩并形成黑洞。暗物质黑洞比例的上限取决于可以形成的黑洞的最小质量：最具约束力的结果是在，其中。这些是第一个限制放在耗散暗模型的亚太阳质量分析。
We report on a search for compact binary coalescences where at least one binary component has a mass betweenandin Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of. This implies an upper limit on the merger rate of subsolar binaries in the range, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we find that the fraction of dark matter in primordial black holes in the mass rangeis. This improves existing constraints on primordial black hole abundance by a factor of. The other is a dissipative dark matter model, in which fermionic dark matter can collapse and form black holes. The upper limit on the fraction of dark matter black holes depends on the minimum mass of the black holes that can be formed: the most constraining result is obtained at, where. These are the first constraints placed on dissipative dark models by subsolar-mass analyses.