Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run
Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run
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在 Advanced LIGO 的第二部分和 Advanced Virgo 的第三次观测中搜索亚太阳质量黑洞双星
DOI：
10.1093/mnras/stad588
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发表时间：
2023
影响因子：
4.8
通讯作者：
The LVK, Collaboration
中科院分区：
文献类型：
--
作者：
The LVK, Collaboration
我们描述了在2019年11月1日15：00utc和2020年3月27日17：00utc之间收集的高级激光干涉仪引力波天文台（LIGO）和高级处女座数据中至少有一个质量与质量比q ≥ 0.1的致密双星的引力波搜索。未检测到信号。最重要的候选者具有的误报率为。我们估计了我们在整个Advanced LIGO和Advanced Virgo的第三次观测运行中搜索的灵敏度，并提出了迄今为止对具有至少一个亚太阳质量分量的二元黑洞合并率的最严格限制。我们使用上限来约束两个基准的情况下，可能会产生亚太阳质量的黑洞：原始黑洞（PBH）和耗散暗物质的模型。PBH模型使用最近的处方合并率的PBH二进制文件，其中包括一个率抑制因子，以有效地占PBH早期二进制中断。如果PBH是单色分布的，那么我们可以在探测的亚太阳质量范围内排除PBH中的暗物质部分（置信度为90%）。然而，如果我们允许宽PBH质量分布，我们不能排除fPBH = 1。对于耗散模型，其中暗物质具有允许一小部分冷却并坍缩成黑洞的化学性质，我们发现原子暗物质坍缩成黑洞的比例的上限fDBH < 10− 5。
We describe a search for gravitational waves from compact binaries with at least one component with mass–and mass ratioq≥ 0.1 in Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) and Advanced Virgo data collected between 2019 November 1, 15:00utcand 2020 March 27, 17:00utc. No signals were detected. The most significant candidate has a false alarm rate of. We estimate the sensitivity of our search over the entirety of Advanced LIGO’s and Advanced Virgo’s third observing run, and present the most stringent limits to date on the merger rate of binary black holes with at least one subsolar-mass component. We use the upper limits to constrain two fiducial scenarios that could produce subsolar-mass black holes: primordial black holes (PBH) and a model of dissipative dark matter. The PBH model uses recent prescriptions for the merger rate of PBH binaries that include a rate suppression factor to effectively account for PBH early binary disruptions. If the PBHs are monochromatically distributed, we can exclude a dark matter fraction in PBHs(at 90 per cent confidence) in the probed subsolar-mass range. However, if we allow for broad PBH mass distributions, we are unable to rule outfPBH= 1. For the dissipative model, where the dark matter has chemistry that allows a small fraction to cool and collapse into black holes, we find an upper boundfDBH< 10−5on the fraction of atomic dark matter collapsed into black holes.