Vortex Structures in a Rotating BEC Dark Matter Component

Figure 2

Rotation curve data for the spiral galaxy NGC2998 (dots with uncertainties) and calculation with a square (thick line) and triangular (short dashed) BEC vortex lattice in the DM component. Shown are also the individual contributions from the bulge (dot-dashed), disk + gas (dotted), and DM for the square lattice case (long dashed). The parameters used are 𝑟₀=5.0, 𝛾=2.15, 𝑏=3.0, 𝐿_𝑣=6.5, and 𝑑=1.0 (all lengths in kpc).