论文标题
Astro-Prordial Black Hole合并率：重新评估
The Astro-Primordial Black Hole Merger Rates: a Reappraisal
论文作者
论文摘要
我们主要是由我们认为是基准点的GW190521质量间隙事件的动机，我们批判性地评估是否形成了由原始黑洞和天体物理起源的黑洞制成的二进制物，并可能形成恒星簇中的二进制物，并重现Ligo/virgo检测率。虽然两种先前研究的机制（直接捕获和三个机构被引起的机制）似乎效率低下，但我们提出了一个新的“催化”渠道，基于这样的想法，即随后的单二进制和二进制二进制交流链链，如果最近的GW190521事件可能会导致较大的一定程度的黑色繁殖，则可能会导致高大规模二进制对的形成，并表明它可以解释了较大的范围，而不是较大的黑色货币。
Mainly motivated by the recent GW190521 mass gap event which we take as a benchmark point, we critically assess if binaries made of a primordial black hole and a black hole of astrophysical origin may form, merge in stellar clusters and reproduce the LIGO/Virgo detection rate. While two previously studied mechanisms -- the direct capture and the three body induced -- seem to be inefficient, we propose a new "catalysis" channel based on the idea that a subsequent chain of single-binary and binary-binary exchanges may lead to the formation of a high mass binary pairs and show that it may explain the recent GW190521 event if the local overdensity of primordial black holes in the globular cluster is larger than a few.
