Fig. A.2
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χ2 plots of HCN and CO2 detected in region 2. The red, yellow, and green lines indicate the 1σ, 2σ, and 3σ confidence contours, respectively. The white contours show the emitting radii in astronomical units (0.1 to 2.0 au). The black cross corresponds to the best fit. The bottom plot shows the map for CO2 when fitting the Q-branch only.
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