论文标题

Nanograv结果和Ligo-Virgo原始黑洞在类似轴突的Curvaton模型中

NANOGrav results and LIGO-Virgo primordial black holes in axion-like curvaton model

论文作者

Inomata, Keisuke, Kawasaki, Masahiro, Mukaida, Kyohei, Yanagida, Tsutomu T.

论文摘要

我们讨论了最近的Nanograv结果与Ligo-Virgo事件的原始黑洞(PBH)之间的可能联系。特别是,我们专注于类似轴突的曲面模型,该模型提供了大量的PBHS和GWS,该模型是由纳米格拉夫频率范围内的标量扰动引起的。该模型的不可避免的非高斯性抑制了与Ligo-Virgo事件相关的与PBH相关的诱导GWS,与Nanograv结果兼容。我们表明,类似轴突的曲面模型可以解释Ligo-Virgo事件的PBH,并同时考虑Nanograv结果。

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 axion-like curvaton model, which provides a sizable amount of PBHs and 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 axion-like curvaton model can account for PBHs for the LIGO-Virgo events and the NANOGrav results simultaneously.

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