Top panel: same as the top panel of Fig. B.2, but for the case of the low-kurtosis subsample of α.btfr galaxies. The maximum likelihood slope for this subsample is α = 4.14 ± 0.14. The likelihood distribution of the slope for the full α.btfr sample is also plotted as a thin dashed line, for comparison. Bottom panel: same as the bottom panel of Fig. B.2, but for the case of the low-kurtosis subsample of α.btfr galaxies. The maximum likelihood intercept for this subsample is β = 9.605 ± 0.015, and refers to a pivot value of . Keep in mind that the pivot values for the full α.btfr sample and for the low-kurtosis subsample are different.