Figure 18

Figure 18: (a) Baryonic density of a model galaxy made of a small Plummer bulge with a mass of 2 × 108M ⊙ and Plummer radius of 185 pc, and of a Miyamoto–Nagai disk of 1.1 × 1010M ⊙, a scale-length of 750 pc and a scale-height of 300 pc. (b) The derived phantom dark matter density distribution: it is composed of a spheroidal component similar to a dark matter halo, and of a thin disk-like component (Figure made by Fabian Lüghausen [253])