Same as in Fig. 2, but using the peak-weighted nonparametric method from Speranza et al. (2021). The solid black line on the blue side of the emission line corresponds to the mirror image of the red side. The gray area is the core of the line, defined as the region between the peak and one-third of the peak flux. The orange area is the result of subtracting the black from the blue line outside the core region, which is what we consider to be outflowing gas using this method. The vertical dashed black and gray lines are the peak and outflow velocities (v_p and v_OF).