Open Access
Table E.1
Condensation temperatures and volume mixing ratios (by number).
| Species | Tcond | volume mixing ratio |
|---|---|---|
| CO | 20 | 0.45 × C/H |
| N2 | 20 | 0.45 × N/H |
| CH4 | 30 | 0.25 × 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 × Mg2SiO4/H + CO/H + 2 × CO2/H + 3 × Fe2O3/H + 4 × Fe3O4/H + VO/H + TiO/H + 3×Al2O3 + 8×NaAlSi3O8 + 8×KAlSi3O8) |
| Fe3O4 | 371 | (1/6) × (Fe/H - 0.9 × S/H) |
| C (grains) | 631 | 0.2 × 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 | 0.5×(Al/H - (K/H + Na/H)) |
| TiO | 2000 | Ti/H |
Notes. We use the 20% carbon grain model of Schneider & Bitsch (2021a) for the mixing ratios. Condensation temperatures of molecules are taken from Lodders (2003). We assume Fe2O3 has the same condensation temperature as Fe.
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