NANOGrav Results and LIGO-Virgo Primordial Black Holes in Axionlike Curvaton Models
NANOGrav Results and LIGO-Virgo Primordial Black Holes in Axionlike Curvaton Models
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NANOGrav 结果和类轴子曲线模型中的 LIGO-Virgo 原初黑洞
DOI：
10.1103/physrevlett.126.131301
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发表时间：
2021
影响因子：
8.6
通讯作者：
Yanagida Tsutomu T.
中科院分区：
文献类型：
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作者：
Inomata Keisuke;Kawasaki Masahiro;Mukaida Kyohei;Yanagida Tsutomu T.
我们讨论了最近的NANOGrav结果和LIGO-Virgo事件的原始黑洞（PBH）之间的可能联系。特别是，我们专注于axionlike曲率模型，它提供了相当数量的PBH和引力波（GW）引起的标量扰动周围的NANOGrav频率范围。这个模型的不可避免的非高斯性抑制了与LIGO-Virgo事件的PBH相关的诱导GW与NANOGrav结果兼容。我们表明，类轴子曲率模型可以同时解释LIGO-Virgo事件和NANOGrav结果的PBH。
We discuss a possible connection between the recent NANOGrav results and the primordial black holes (PBHs) for the LIGO-Virgo events. In particular, we focus on the axionlike curvaton model, which provides a sizable amount of PBHs and gravitational waves (GWs) induced by scalar perturbations around the NANOGrav frequency range. The inevitable non-Gaussianity of this model suppresses the induced GWs associated with PBHs for the LIGO-Virgo events to be compatible with the NANOGrav results. We show that the axionlike curvaton model can account for PBHs for the LIGO-Virgo events and the NANOGrav results simultaneously.