Dynamical friction in rotating ultralight dark matter galactic cores
Astrophysics of Galaxies
2024-11-11 v2
Abstract
Dynamical friction and stellar orbital motion in spiral galaxies with dark matter composed of ultralight bosons in the state of rotating Bose-Einstein condensate (BEC) are studied. It is found that the dynamical friction force is significantly affected by the topological charge of the vortex structure of the BEC core with the strongest effect at distances near the galactic center. It is also shown that the ultralight dark matter self-interaction plays an important role in studying the dynamical friction.
Keywords
Cite
@article{arxiv.2408.00104,
title = {Dynamical friction in rotating ultralight dark matter galactic cores},
author = {V. M. Gorkavenko and O. V. Barabash and T. V. Gorkavenko and O. M. Teslyk and A. O. Zaporozhchenko and Junji Jia and A. I. Yakimenko and E. V. Gorbar},
journal= {arXiv preprint arXiv:2408.00104},
year = {2024}
}
Comments
14 pages, 5 figures