论文标题
Nanograv暗示着原始黑孔作为暗物质
NANOGrav Hints to Primordial Black Holes as Dark Matter
论文作者
论文摘要
Nanograv的合作最近为随机常见过程提供了有力的证据，该过程可以解释为随机的引力波背景。我们表明，这种信号可以通过在通货膨胀期间产生的可观标量扰动的崩溃而形成原始黑洞时产生的二阶重力波。这种可能性有两个预测：$ i $）原始黑洞可能包括暗物质的总体，其质量功能在$（10^{ - 15}÷10^{ - 11}）M_ \ odot $和$ ii $的范围内的主要贡献也将通过Lisa的实验来看到引力波动的背景。
The NANOGrav Collaboration has recently published a strong evidence for a stochastic common-spectrum process that may be interpreted as a stochastic gravitational wave background. We show that such a signal can be explained by second-order gravitational waves produced during the formation of primordial black holes from the collapse of sizeable scalar perturbations generated during inflation. This possibility has two predictions: $i$) the primordial black holes may comprise the totality of the dark matter with the dominant contribution to their mass function falling in the range $(10^{-15}÷10^{-11}) M_\odot$ and $ii$) the gravitational wave stochastic background will be seen as well by the LISA experiment.
