Best-fit, line-of-sight velocity dispersion profiles for model 1 (gNFW with free T outer anisotropy with TAND) for sigv-stacked pseudo-cluster. The symbols are the data (150 galaxies per radial bin) as in Fig. 2, while the curves and shaded regions respectively show the median predictions of model 1 and their MCMC uncertainties. The vertical gray-shaded region represents r₂₀₀ and its MCMC uncertainty.