Gravitational Stability of Vortices in Bose-Einstein Condensate Dark Matter
Abstract
We investigate a simple model for a galactic halo under the assumption that it is dominated by a dark matter component in the form of a Bose-Einstein condensate involving an ultra-light scalar particle. In particular we discuss the possibility if the dark matter is in superfluid state then a rotating galactic halo might contain quantised vortices which would be low-energy analogues of cosmic strings. Using known solutions for the density profiles of such vortices we compute the self-gravitational interactions in such halos and place bounds on the parameters describing such models, such as the mass of the particles involved.
Keywords
Cite
@article{arxiv.0902.0605,
title = {Gravitational Stability of Vortices in Bose-Einstein Condensate Dark Matter},
author = {Mark N Brook and Peter Coles},
journal= {arXiv preprint arXiv:0902.0605},
year = {2022}
}
Comments
12 pages, 4 figures, published in the Open Journal of Astrophysics. Revised and updated paper originally written when authors were at the University of Nottingham but not previously published