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arXiv · 2103.10717

Rotating hybrid axion-miniboson stars

Yan-Bo Zeng·Hong-Bo Li·Shi-Xian Sun·Si-Yuan Cui·Yong-Qiang Wang
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Abstract

We construct rotating hybrid axion-miniboson stars (RHABSs), which are asymptotically flat, stationary, axially symmetric solutions of (3+1)-dimensional Einstein-Klein-Gordon theory. RHABSs consist of a axion field (ground state) and a free complex scalar field (first excited state). The solutions of the RHABSs have two types of nodes, including $^1S^2S$ state and $^1S^2P$ state. For different axion decay constants $f_a$, we present the mass $M$ of RHABSs as a function of the synchronized frequency $ω$, as well as the nonsynchronized frequency $ω_2$, and explore the mass $M$ versus the angular momentum $J$ for the synchronized frequency $ω$ and the nonsynchronized frequency $ω_2$ respectively. Furthermore, we study the effect of axion decay constant $f_a$ and scalar mass $μ_2$ on the existence domain of the synchronized frequency $ω$.

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Yan-Bo Zeng, Hong-Bo Li, Shi-Xian Sun, Si-Yuan Cui, Yong-Qiang Wang. 2021-03-19. Rotating hybrid axion-miniboson stars. https://arxiv.org/abs/2103.10717

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