论文标题
贝叶斯对Ligo/处女座黑色孔的自旋分布的分析
Bayesian analysis of the spin distribution of LIGO/Virgo black holes
论文作者
论文摘要
二进制黑洞（BBH）灵感的重力波检测已得益于Ligo/处女座干涉仪。这些后孔的性质仍然不确定。我们在这里研究了第一个目录GWTC-1的Ligo/Wigo黑洞的自旋分布以及Run O3的前四个已发表的BBH事件。我们计算出几个独立先验的贝叶斯证据：平坦，各向同性，自旋对准和反将。在所有情况下，我们都会发现低旋转的有力证据，以及小型各向同性旋转与任何其他分布的重要证据。当将其视为黑洞的同质种群时，这些结果支持了Ligo/Wigo BBH是原始的观念。
Gravitational wave detection from binary black hole (BBH) inspirals has become routine thanks to the LIGO/Virgo interferometers. The nature of these back holes remains uncertain. We study here the spin distributions of LIGO/Virgo black holes from the first catalogue GWTC-1 and the first four published BBH events from run O3. We compute the Bayes evidence for several independent priors: flat, isotropic, spin-aligned and anti-aligned. We find strong evidence for low spins in all of the cases, and significant evidence for small isotropic spins versus any other distribution. When considered as a homogeneous population of black holes, these results give support to the idea that LIGO/Virgo BBH are primordial.
