Formation of primordial black holes in an axionlike curvaton model
Formation of primordial black holes in an axionlike curvaton model
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DOI：
10.1103/physrevd.98.083508
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发表时间：
2018-10-05
影响因子：
5
通讯作者：
Nakatsuka, Hiromasa
中科院分区：
文献类型：
--
作者：
Ando, Kenta;Kawasaki, Masahiro;Nakatsuka, Hiromasa
详细分析了类轴曲率模型中原始黑洞(PBH)的形成机制。复标量的位相方向是一个曲率，并产生足够的黑洞黑洞双星(类似30M圆点)或黑洞黑洞暗物质(类似于10(-12)M圆点)。我们检查了我们的模型是否满足当前对PBH质量谱、曲率微扰和二次产生的引力波的限制。我们还考虑了窗函数选择的模糊性和非高斯性的影响。
We perform the detailed analysis of the primordial black hole (PBH) formation mechanism in an axionlike curvaton model with a coupling to inflaton. The phase direction of the complex scalar works as a curvaton and produces enough PBHs to explain the black hole binaries (similar to 30 M-circle dot) observed in the LIGO-Virgo Collaboration or PBHs as dark matter (similar to 10(-12) M-circle dot). We examine whether our model satisfies the current constraints on the PBH mass spectrum, the curvature perturbation, and the secondarily produced gravitational waves. We also take into account ambiguity about the choice of the window functions and effect of the non-Gaussianity.