Figure 29

Figure 29: The mass distribution of the Milky Way disk (left) inferred from fitting in MOND the observed bumps and wiggles in the rotation curve of the galaxy (right) [274]. The Newtonian contributions of the stellar and gas disk are shown as dashed and dotted lines as per Figure 13. The resulting model is consistent with independent star count data [155] and compares favorably to constraints on the rotation curve at radii beyond those included in the fit [494]. The prominent feature at R ≈ 6 kpc corresponds to the Centaurus spiral arm.