Top to bottom panels: polarized emission I _p , polarization percentage p, and polarization percentage vs. Stokes I, normalized by ﹩{I}_{\max }﹩, for W51 e2 (left column) and W51 e8 (right column). The red solid lines in the bottom panels are the best-fit power laws with indices −0.81 (e2) and −0.77 (e8). The maps display overgridded data for a sharper visualization. The data in the bottom panels are extracted from maps gridded to only half of the synthesized beam resolution.