Integrated H I and CO spectra (global profiles). The full curve shows the r = 1.5 H I profile, the dashed curve the r = 0.5 profile from MeerKAT. The dotted gray line is the H I global profile derived from GBT data (Sardone et al., in prep.). The long-dashed gray line is the HIPASS spectrum. The histogram indicates the global ALMA CO spectrum where the CO flux density values have been scaled down by a factor of three.