Σ_SFR vs. Σ_HI of GalA (left) and GalB (right). The solid line shows a power-law fit to the data. The spatial resolution for each plot is given in the lower left corner. r is the correlation coefficient, std is the corrected sample standard deviation, and a is the power-law index. From top to bottom, the spatial resolution decreases in steps of ~100 pc for GalA and ~150 pc for GalB. The highest spatial resolution presented is ~280 pc for GalA and ~440 pc for GalB.