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Fig. 2

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Dust-to-gas ratio calculated by abundance module based on the amount of atoms in the solid and gas phase. This plot shows how the dust-to-gas ratio changes throughout the disk. The steps in the plot are caused by the condensation of different species mentioned in Table 1. The colors in the plot indicate different regions in the disk. Cyan indicates region A, and shows the disk within the water ice line. Black indicates region B, and shows the disk farther than the water ice line and within the CO2 ice line. Red indicates region C, and shows the disk between the CO2 ice line and CO ice line. Blue indicates region D, and shows the disk farther than the CO ice line.

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