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arXiv · 2301.09220

Axion and the Supermassive Black Holes at high $z$

Takeshi Fukuyama
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Abstract

Axion dark matter (DM) is studied on the formation of supermassive black holes (SMBHs) at high red shift $z$. It is shown that the attractive self interaction of this DM may solve the tension between the high angular momentum of SMBH and its early time formation. We consider the ultra-light axion DM around $O(10^{-21})$ eV as its origin, which may also cause nano-Hz stochastic gravitational wave background recently observed.

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Takeshi Fukuyama. 2023-01-22. Axion and the Supermassive Black Holes at high $z$. https://arxiv.org/abs/2301.09220

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