Fig. 8.
Left: slope α derived from J = 1−0 12CO multi-aperture photometry as a function of galaxy distance. Completely unresolved galaxies have α = 0, and fully resolved galaxies have a constant CO surface brightness with α = 2. The solid line marks the mean value of the sample, the two dashed lines mark half-widths of the distribution. Right: fraction of the total J = 1−0 CO flux of the sample galaxies contained within a beam of FWHM 22″ as a function of galaxy distance.
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