Global asymmetric parameters as a function of resolution for the disks (squares), mergers (circles), and the disturbed disk Freesia (diamonds). The global asymmetric parameters are computed according to the definitions of Shapiro et al. (2008) (upper) and Bellocchi et al. (2012) (bottom). The solid black and dashed gray lines in the upper panel show the limit of 0.5 and 0.14, indicated by Shapiro et al. (2008) and Bellocchi et al. (2016) as the thresholds for distinguishing between disks and mergers, respectively. In the bottom panel, the solid and dashed black lines show the limits of 0.19 and 0.16, indicated by Bellocchi et al. (2016) as the discriminators between disks and mergers at low and high-z, respectively.