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Fig. 12

image

Comparison of [C II] (red) and [13C II] (blue) spectra averaged over 20′′ with centers at offsets shown in the panels. The [13C II] spectra have been scaled by a factor of 20 to make the spectra visible alongside [C II]. The smooth curve (black) shows the fit to [C II] spectrum obtained by attenuating the abundance factor scaled [13 C II] spectrum by the absorption due to the foreground cloud.

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