Fig. 20

Widths of the 13CO (1−0) transition compared to those of the NH3 (1, 1) line as contour plot in the upper panel and as scatter plot in the lower panel. The straight line corresponds to equal widths. The binning used for the NH3 (1, 1) linewidth is 0.4 km s-1 and for the 13CO linewidth is 1 km s-1.
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