Galaxy number density of the area where our cluster objects lie (Verdugo et al. 2012) with respect to their asymmetry index. The orange, white, and violet stars represent regular, affected, and irregular cluster objects, respectively. The orange dots joined by lines of the same color show the mean values and standard deviation of our cluster sample divided into four bins according to their asymmetry index (A ≤ 50, 50 ≤ A ≤ 100, 100 ≤ A ≤ 150, and 150 ≤ A ≤ 200).