Distributions of (left) and Π (right) as a function of the column density , normalized in each core by its maximum value . The color scale represents number density of points in the plots. The solid black (red) lines and black (red) points represent the running mean of (Π); the associated error bars are ± the standard deviation of each bin. To facilitate the visual comparison, the running means of both and Π a re plotted in both panels.