Wave Dark Matter and the Tully-Fisher Relation

Abstract

We investigate a theory of dark matter called wave dark matter, also known as scalar field dark matter (SFDM) and boson star dark matter or Bose-Einstein condensate (BEC) dark matter, in spherical symmetry and its relation to the Tully-Fisher relation. We show that fixing the oscillation frequency of wave dark matter near the edge of dark galactic halos implies a Tully-Fisher-like relation for those halos. We then describe how this boundary condition, which is roughly equivalent to fixing the half-length of the exponentially decaying tail of each galactic halo mass profile, may yield testable predictions for this theory of dark matter.

arXiv comment19 pages, 4 figures

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Cited by in corpus (5)

• Dwarf galaxies in multistate Scalar Field Dark Matter haloes
• On wave dark matter in spiral and barred galaxies
• Tully-Fisher Scalings and Boundary Conditions for Wave Dark Matter
• Existence and Stability Properties of Radial Bound States for Schrödinger-Poisson with an External Coulomb Potential in Three Space Dimensions
• The Einstein-Klein-Gordon Equations, Wave Dark Matter, and the Tully-Fisher Relation