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Table 2

Condensation temperatures and nebulae abundances of volatile species in the model.

Specie Tcond (K) Nebulae abundance (mass/H2)

CO:H2O = 0.2 CO:H2O = 1

H2O 152–173 8.16 × 10-3 5.62 × 10-3
CH3OH 127–143 2.17 × 10-3 1.5 × 10-3
NH3 88–99 5.39 × 10-4 3.72 × 10-4
CO2 77–86 3.99 × 10-3 2.75 × 10-3
H2S 67–75 3.09 × 10-4 2.13 × 10-4
CH4 31–60 4.35 × 10-4 3.00 × 10-4
CO 28–60 2.54 × 10-3 8.75 × 10-3
N2 23–60 8.89 × 10-4 6.12 × 10-4

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