Correlations between ΔM and intensive galaxy properties. Each panel shows a scatter plot of the residual between the actual absolute magnitude and the magnitude expected from the TFR, and an intensive galaxy property (from left to right: specific H I mass, sSFR, u − r colour, and i − [3.6] colour). The different rows correspond to different broadband filters (from top to bottom: NUV, g, z, and [3.6]). In each panel, the dotted line is the best-fitting linear fit to the data, and the Spearman rank correlation coefficient is indicated in the top right corner.