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.

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

References in corpus (9)

• Cosmic Structure as the Quantum Interference of a Coherent Dark Wave
• Can dark matter be a Bose-Einstein condensate?
• New insights into the formation and growth of boson stars in dark matter halos
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• Self-consistent construction of virialized wave dark matter halos
• Gravitational instability via the Schrodinger equation
• Angular Momentum and the Absence of Vortices in the Cores of Fuzzy Dark Matter Haloes
• Effective quantum tunneling from semiclassical momentous approach
• The Wave Mechanics of Large-scale Structure

Cited by in corpus (7)

• Evolution of cosmological perturbations in Bose-Einstein condensate dark matter
• Bose-Einstein condensation of dark matter solves the core/cusp problem
• Finite temperature effects in Bose-Einstein Condensed dark matter halos
• Infinite Statistics Condensate as a Model of Dark Matter
• Cosmological Inhomogeneities with Bose-Einstein Condensate Dark Matter
• Angular Momentum and the Absence of Vortices in the Cores of Fuzzy Dark Matter Haloes
• Vortices and rotating solitons in ultralight dark matter