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Dynamical friction in rotating ultralight dark matter galactic cores
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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.
Forward citations
Cited by 3 Pith papers
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Vortex State of Ultralight Dark Matter and the Fornax Timing Problem
A vortex state of ultralight dark matter suppresses dynamical friction for co-rotating globular clusters, potentially resolving the Fornax timing problem.
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For circular orbits in ultralight dark matter, the dynamical friction on a Plummer sphere is the point-probe result multiplied by the cluster's momentum-space form factor, with deviations growing at large size-to-orbi...
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Ultralight fuzzy dark matter review
A review of fuzzy dark matter that surveys the models, wave phenomenology, numerical methods, and current observational mass constraints of ultralight dark matter.
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