Total and stellar mass concentration vs. redshift. The theoretical relations from Bhattacharya et al. (2013; solid lines) and from De Boni et al. (2013; dash-dotted lines) are shown for halos of masses log M₂₀₀/M_⊙ = 14.25,14.75,15.25 (blue, green, red curves, resp.). The data-points represent determinations of the total and stellar mass concentrations (left and right panel, resp.) from the literature and the present work (indicated by a square). The points are colored according to the average mass of the sample of clusters used for the determination of c: log M₂₀₀/M_⊙< 14.5 (blue), 14.5 ≤ log M₂₀₀/M_⊙< 15.0 (green), log M₂₀₀/M_⊙ ≥ 15.0 (red). The data references can be found in Table 3.