Distributions of Q_r, ρ logarithmic slopes vs. central velocity anisotropy, β₀ for the E (top panel), S0 (middle panel), and S (bottom panel) classes. Dots indicate the peaks of the density distribution of the MCMC chain elements in this diagram, for the different models (color coded as in Table 1). The contour contains 68% of the MCMC chain elements for model 15e (navy blue). We omit the contours of the other models for the sake of clarity. The solid line is the relation α_r =   − 35/18 + 2/9 β₀ from Dehnen & McLaughlin (2005).