Open Access
Table A.1
The chemistry model (Bitsch & Battistini 2020; Schneider & Bitsch 2021b) provides the distribution of elements among molecules. Here, it is assumed that carbon grains are formed from 60 % of the available carbon.
| Species | Evap.temp. Tevap [K] | volume mixing ratio |
|---|---|---|
| CO | 20 | 0.2 × C/H |
| N2 | 20 | 0.45 × N/H |
| CH4 | 30 | 0.1 × C/H |
| CO2 | 70 | 0.1 × C/H |
| NH3 | 90 | 0.1 N/H |
| H2S | 150 | 0.1 × S/H |
| H2O | 150 | O/H − (3 × MgSiO3/H + 4 × MgSiO4/H + CO/H + 2 × CO2/H + 3 × Fe2O3/H + 4 × Fe3O4/H + VO/H + TiO/H + 3 × Al2O3 + 8 × NaAlSi3O8 + 8 × KAlSi3O8) |
| Fe3O4 | 371 |  |
| C (carbon grains) | 631 | 0.6 × C/H |
| FeS | 704 | 0.9 × S/H |
| NaAlSi3O8 | 958 | Na/H |
| KAlSi3O8 | 1006 | K/H |
| Mg2SiO4 | 1354 | Mg/H − (Si/H − 3 × K/H − 3 × Na/H) |
| Fe2O3 | 1357 | 0.25 × (Fe/H − 0.9 × S/H) |
| VO | 1423 | V/H |
| MgSiO3 | 1500 | Mg/H − 2 × (Mg/H − (Si/H − 3 × K/H − 3 × Na/H)) |
| Al2O3 | 1653 | Al/H − (K/H + Na/H) |
| TiO | 2000 | Ti/H |
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