Line-of-sight velocity dispersion profile of the galactic component as a function of the radial distance from the cluster center normalized to the global velocity dispersion σ_los of each cluster. As in Fig. 4, for each cluster, the circularized radius R was measured in terms of the cluster stellar half-mass radius, and the bins were defined according to the same procedure. The vertical bars represent the errors evaluated as , where σ_los(R) is the velocity dispersion relative to the radial bin located at R, and N(R) is the number of galaxies inside the bin.