Same as Fig. 1 including galaxies (red circles; Gao & Solomon 2004). The fit for the stars and clouds is now indicated by the region enclosed within the green dotted line. The red dotted region is the 3σ global fit for all sources. The green open circle is the sum of 4 × 104 clouds with a typical SFR and Mdg, and the red solid square is the direct measurement of SFR and Mdg in the MW (see text).
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