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Table 3
Reduced χ2 for different combinations of molecules (in addition to H2O) included in a cloud-free retrieval using ARCiS, and references for the line lists used.
| Molecule (in addition to H2O) | Reduced χ2 | Line list data used |
|---|---|---|
| AlO | 0.8 | |
| AlO + Na | 0.83 | |
| AlO + Na + CH4 | 0.88 | |
| AlO (only) | 0.98 | Patrascu et al. (2014) |
| C2H2 | 1.04 | Chubb et al. (2020b) |
| TiO | 1.07 | McKemmish et al. (2019) |
| FeH | 1.07 | Wende et al. (2010) |
| H2O (only) | 1.09 | Polyansky et al. (2018) |
| K | 1.11 | Kramida et al. (2013) |
| Na | 1.12 | Kramida et al. (2013) |
| HCN | 1.14 | Barber et al. (2014) |
| HeH+ | 1.14 | Amaral et al. (2019) |
| CH4 | 1.15 | Yurchenko et al. (2017) |
| CO2 | 1.15 | Rothman et al. (2010) |
| C2H4 | 1.15 | Mant et al. (2018) |
| NH3 | 1.15 | Coles et al. (2019) |
| CH | 1.15 | Masseron et al. (2014) |
| H2CO | 1.15 | Al-Refaie et al. (2015) |
| H2S | 1.15 | Azzam et al. (2016) |
| OH | 1.16 | Yousefi et al. (2018) |
| HNO3 | 1.16 | Pavlyuchko et al. (2015) |
| TiH | 1.19 | Burrows et al. (2005) |
| ScH | 1.2 | Lodi et al. (2015) |
| VO | 1.23 | McKemmish et al. (2016) |
| MgO | 1.25 | Li et al. (2019) |
| No mols | 1.63 |
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