Data in the plane (c₂₀₀,M₂₀₀) used to constrain the cosmological parameters (Ω_m,σ₈). The dotted lines show the predicted relations from Eke et al. (2001) for a given ΛCDM cosmological model at z = 0 (from top to bottom: σ₈ = 0.9 and σ₈ = 0.7). The shaded regions show the predictions in the redshift range 0.1 − 0.3 for an assumed cosmological model in agreement with WMAP-1, 5 and 3 years (from the top to the bottom, respectively) from Bullock et al. (2001; after Macciò et al. 2008). The dashed lines indicate the best-fit range at 1σ obtained for relaxed halos in a WMAP-5 years cosmology from Duffy et al. (2008; thin lines: z = 0.1, thick lines: z = 0.3). Color codes and symbols as in Fig. 5.