Example of MCMC fits (left) and the corresponding posterior distribution (right). In the left panels, the points with error bars are the observed rotation curves V _obs (R) or corresponding accelerations . In the rotation curve panel, each baryonic component is presented: purple dash-dotted line for the bulge, blue dashed line for the disk, and green dotted line for the gas. The red solid line is the fitted rotation curve. The dark gray and light gray bands show the 68% and 95% confidence regions, respectively, considering the posterior distribution of ϒ_⋆; they do not include additional uncertainties on i and D. In the acceleration panels, the red solid line represents the mean RAR to which we fit. In the right panels, the blue cross indicates the parameter set corresponding to the maximum posterior probability. The complete figure set (175 images) is shown in the appendix.