Dynamical friction in rotating ultralight dark matter galactic cores

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 struc...

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Published inarXiv.org
Main Authors Gorkavenko, V M, Barabash, O V, Gorkavenko, T V, Teslyk, O M, Zaporozhchenko, A O, Jia, Junji, Yakimenko, A I, Gorbar, E V
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 31.07.2024
Subjects
Bose-Einstein condensates
Bosons
Dark matter
Friction
Galactic rotation
Rotating matter
Spiral galaxies
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Summary: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.
ISSN:2331-8422