Comparison of the reported flux in the 0.5–2 keV band for galaxy groups and clusters in common between Adami et al. (2011) and our catalog, (Flux_Adami/ Flux_Ours − 1) versus R₅₀₀ (Mpc). We illustrate C1 clusters with black triangles, C2 clusters with red diamonds and C3 clusters with blue squares. The filled and open symbols show galaxy groups and clusters at redshift ranges z> 0.6 and z ≤ 0.6, respectively. The vertical dashed blue line at 0.5 Mpc, marks the fixed radius used for the flux estimates in Adami et al. (2011).