Map of Coma cluster galaxies listed in WLG11. Circled red dots: primaries (brighter than M_R = −20); black dots: secondaries; small crosses: galaxies without redshifts which are not considered in this analysis. The subsamples, i.e. annular regions considered in Sect. 4.3.2, are indicated by gray ellipses and Roman numbers (steps of ~0.5 Mpc). The black rectangle indicates the field covered by MA08 shown in Fig. 1.