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arXiv · 1207.2550

Primordial black hole formation from an axion-like curvaton model

Masahiro Kawasaki·Naoya Kitajima·Tsutomu T. Yanagida
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Abstract

We argue that the existence of the cold dark matter is explained by primordial black holes.We show that a significant number of primordial black holes can be formed in an axion-like curvaton model, in which the highly blue-tilted power spectrum of primordial curvature perturbations is achieved.It is found that the produced black holes with masses $\sim 10^{20} -10^{38} \mathrm{g}$ account for the present cold dark matter.We also argue the possibility of forming the primordial black holes with mass $\sim 10^5 M_{\odot}$ as seeds of the supermassive black holes.

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Masahiro Kawasaki, Naoya Kitajima, Tsutomu T. Yanagida. 2013-03-21. Primordial black hole formation from an axion-like curvaton model. https://doi.org/10.1103/physrevd.87.063519

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