a): 22 GHz continuum image of the two cometary H ii regions in DR 21. The contour levels are 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, and 1 Jy beam-1, chosen to match the contour levels of Fig. 2 in Paper I as closely as possible. (The lowest contour level in Fig. 2 of Paper I is 0.02 Jy beam-1.) b) and c): same as a). The boxes show the areas over which the emission was summed to generate the “long slit” b) and the “box” c) spectra in Figs. 3 and 4. The numbers in the boxes correspond to the position numbers in Tables 1 and 2, respectively. In each panel, the 3.4″ (FWHM) synthesized beam is shown in the lower left corner and a scale bar of 0.1 pc is shown in the upper left corner.
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