Projected number density profiles of faint galaxies around the 1st ranked (black) and 2nd ranked (grey) galaxy of the groups. Upper panel: profiles for the mock CG (CGs2) sample while the second panel shows the profiles for the control groups (S2) shown in Fig. 5. Faint galaxies are selected having r_brightest + 3 <r_i< 17.77. Error bars are the standard deviations computed with 100 bootstraps. Bottom panels: ratios between the profiles around CGs2 and the profiles around S2. Errors are computed by error propagation.