Table 2
Variations in modelled abundances for when the converged grain size is assumed constant (conv) versus assuming the grain size to change for each chemical evolution time step (vary) for the dominant carriers of C and O at the four radii.
| 1.5 AU | 5 AU | 20 AU | 30 AU | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.1 Myr | 0.5 Myr | 1 Myr | 0.1 Myr | 0.5 Myr | 1 Myr | 0.1 Myr | 0.5 Myr | 1 Myr | 0.1 Myr | 0.5 Myr | 1 Myr | |
| H2O ice | 0.03% | 0% | −0.06% | −0.03% | −0.03% | −0.03% | 0.3% | 0.1% | 0.03% | 0.07% | 0% | −0.03% |
| CO2 ice | – | – | – | – | – | – | −1% | −0.6% | −0.2% | 0.3% | −0.2% | −0.05% |
| CO gas | 1% | 0.3% | 0.4% | −0.4% | −0.5% | −0.7% | – | – | – | – | – | – |
Notes. Calculated as 
, thus positive percentages mean the abundance when using the converged grain size was larger than when using the varying grain size, and vice versa for negative percentages. For models run with molecular initial abundances. The minus indicates that a given phase of a species is irrelevant at a given radius because it is either inside or outside the iceline of that species.
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