Constraints on the Primordial Black Hole Abundance from the First Advanced LIGO Observation Run Using the Stochastic Gravitational-Wave Background.
Constraints on the Primordial Black Hole Abundance from the First Advanced LIGO Observation Run Using the Stochastic Gravitational-Wave Background.
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DOI：
10.1103/physrevlett.120.191102
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发表时间：
2016-10
影响因子：
8.6
通讯作者：
Sai Wang;Yi-Fan Wang;Q. Huang;T. Li
中科院分区：
文献类型：
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作者：
Sai Wang;Yi-Fan Wang;Q. Huang;T. Li
先进的 LIGO 对引力波事件的发现正在刺激对双黑洞起源的广泛研究。假设引力波事件可以用双原初黑洞并合来解释，我们利用Advanced LIGO给出的随机引力波背景上限作为新的观测窗口来独立约束暗物质中原初黑洞的丰度。我们表明，Advanced LIGO 的首次观测对 1M_{⊙}≲M_{PBH}≲100M_{⊙} 质量范围内的原初黑洞丰度给出了最佳约束，将之前的微透镜和矮星系动力学约束推紧了 1 个数量级。此外，我们还讨论了在不久的将来通过高级 LIGO 探测原始黑洞（特别是日下质量原始黑洞）随机引力波背景的可能性。
Advanced LIGO's discovery of gravitational-wave events is stimulating extensive studies on the origin of binary black holes. Assuming that the gravitational-wave events can be explained by binary primordial black hole mergers, we utilize the upper limits on the stochastic gravitational-wave background given by Advanced LIGO as a new observational window to independently constrain the abundance of primordial black holes in dark matter. We show that Advanced LIGO's first observation run gives the best constraint on the primordial black hole abundance in the mass range 1M_{⊙}≲M_{PBH}≲100M_{⊙}, pushing the previous microlensing and dwarf galaxy dynamics constraints tighter by 1 order of magnitude. Moreover, we discuss the possibility to detect the stochastic gravitational-wave background from primordial black holes, in particular from subsolar mass primordial black holes, by Advanced LIGO in the near future.