Fig. C.1
Radex model predictions for the CO/H2O (top), and OH/H2O (bottom) column density ratios inferred from the conditions in Table 3, shown in red and blue, respectively. The observed line intensity ratios are plotted in green, where the OH/H2O ratio is an upper limit, and all ratios are against the H2O 111–000 HV intensity of 4.7 K km s-1.
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