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Chains of Rotating mini-Boson Stars (2312.16921v1)

Published 28 Dec 2023 in gr-qc and hep-th

Abstract: In this article, we investigate the stationary, soliton-like solutions in the model of the Einstein gravity coupled to a free and complex scalar field, and extend chains of mini-boson stars to the rotating case. These solutions manifest as multiple rotating mini-boson stars uniformly arranged along the rotation axis. Through numerical methods, we obtain chains of rotating mini-boson stars with one to five constituents. We show the distribution of the field functions for these chain solutions. Additionally, we also study the effect of the frequency of the complex scalar field on the ADM mass $M$ and angular momentum $J$. By comparing the conclusions of the rotating case with the non-rotating case, there are some intriguing differences. Furthermore, we observe that there exist two ergospheres for some of these solutions.

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