Table 4
Nested sampling global log-evidence (log(E)) of various retrievals of the HST/WFC3 data, along with the natural log of the Bayes factor, ln(B01), and σ likelihood against: a flat “base” retrieval (i.e. with no molecular features), a retrieval with only H2O included, and a retrieval with only AlO included.
| Molecules included | log(E) | Clouds? | ln(B01) | σ |
|---|---|---|---|---|
| Compared to flat model | ||||
| H2O | 173.2 | No | 9.5 | 4.7 |
| H2O | 172.9 | Yes | 9.2 | 4.6 |
| AlO | 175.4 | No | 12.3 | >5 |
| AlO | 175.3 | Yes | 11.6 | >5 |
| AlO + H2O | 177.4 | No | 13.7 | >5 |
| AlO + H2O | 176.7 | Yes | 13 | >5 |
| Compared to H2O-only model | ||||
| AlO + H2O | 177.4 | No | 4.2 | 3.4 |
| AlO + H2O | 176.7 | Yes | 3.8 | 3.2 |
| FeH + H2O | 174.1 | No | 0.9 | – |
| TiO + H2O | 173.3 | No | 0.1 | – |
| C2H2 + H2O | 172.8 | No | –0.4 | – |
| VO + H2O | 172.1 | No | –1.1 | – |
| Compared to AlO-only model | ||||
| AlO + H2O | 177.4 | No | 2.0 | 2.6 |
| AlO + H2O | 176.7 | Yes | 1.3 | 2.2 |
Notes. For reference, the Nested Sampling Global Log-Evidence of the base flat retrieval is 163.7, for the H2O-only retrieval it is 173.2, and for the AlO-only retrieval it is 175.4. The values for σ have been interpolated from Table 2 of Trotta (2008).
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