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Fig. 3
Oxygen fine-structure line flux ratio as a function of [O i] 63 μm is shown in the left panel. The right panel shows the [O i] 63/[O i] 145 ratio versus the [O i] 63/[C ii] 157 ratio. The blue boxes indicate the observed flux ratios. All ratios suggest a gas mass of a few 10-4M⊙ and a disk-averaged temperature of 75–150 K.
This figure is made of several images, please see below:
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