The complete figure set (93 images) is available in the online journal.

Super profiles of the THINGS galaxies. For each galaxy, we show the results from the single (left panel) and double (middle panel) Gaussian fitting. The right panels show a fit with a Lorentzian function. The bottom panels of each set of plots show the residuals from the fits. The filled circles indicate the data. The solid black lines represent the results from the single, the sum of the double Gaussian, and the Lorentzian fitting. The dotted and the dashed lines in the middle panel represent the narrow and broad components required in the double Gaussian fitting. We plot error bars as 3σ error bars, though in most cases they are smaller than the symbols plotted.