Enclosed galaxy count properties within the projected cluster-centric distance R from the X-ray centroid based on all HAWK-I detected sources. The dashed vertical line indicates the R₅₀₀ radius of the cluster. Top panel: cumulative radial galaxy count profile N( <R) of enclosed sources within R for all galaxies (black solid line) and background-subtracted net cluster member counts (red line). The average background counts are shown by the blue dotted line. A total of about 90 excess galaxies associated with the cluster are detected. Bottom panel: enclosed galaxy density contrast ([ N( <R) − B( <R) ] /B( <R)) within radius R for all galaxies with 17 ≤ Ks ≤ 22 (black line) and brighter galaxies with 17 ≤ Ks ≤ 20 (top red line). At the intersection point with the horizontal dashed dotted line the enclosed cluster galaxy density equals the background density.