期刊
PHYSICAL REVIEW LETTERS
卷 126, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.131301
关键词
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资金
- Kavli Institute for Cosmological Physics at the University of Chicago through the Kavli Foundation
- World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan
- JSPS KAKENHI [17H01131, 17K05434, 17H02878, 19H05810]
- MEXT KAKENHI [15H05889]
- China Grant for Talent Scientific Start-Up Project
- Deutsche Forschungsgemeinschaft under Germany's Excellence Strategy [EXC 2121, 390833306]
The study suggests that the axionlike curvaton model can explain the primordial black holes in both the LIGO-Virgo events and NANOGrav results, with the non-Gaussianity suppressing the gravitational waves associated with PBHs.
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.
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