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Fig. 3.

image

Colors or differences in energy densities at two wavelengths for MIR sources in the catalog of Sharma et al. (2011) that are at galactocentric distances between 7.5 and 10.8 kpc. The red box selects 30 MIR sources that are likely to be YSCCs. The filled symbols indicate the YSCCs selected for pilot observations of the CO J = 1−0 and J = 2−1 lines presented in this paper. Filled red symbols show the two YSCCs where the CO lines have been detected. The open magenta squares indicate the location of MIR sources that optically appear as background disk galaxies.

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