Table 4
Statistical results of the atmospheric retrieval analysis and the stellar contamination modelling on TRAPPIST-1h HST WFC3 G141 data.
| Model | χ2 |  |
log(E) | Δlog(E) |
|---|---|---|---|---|
| Flat-line | 64.95 | 3.61 | 110.55 | N/A |
| Atmosphere primary | 65.20 | 3.62 | 109.92 | –0.63 |
| Atmosphere secondary | 65.25 | 3.62 | 110.18 | –0.37 |
| Stellar Zhang et al. (2018) | 54.02 | 3.00 | N/A | N/A |
| Stellar Wakeford et al. (2019) | 60.70 | 3.37 | N/A | N/A |
| Stellar Morris et al. (2018) | 63.91 | 3.55 | N/A | N/A |
| Corrected by Zhang et al. (2018) | ||||
| Flat-line | 54.94 | 3.05 | 115.48 | N/A |
| Atmosphere primary | 50.54 | 2.81 | 115.02 | –0.46 |
| Atmosphere secondary | 54.77 | 3.04 | 115.20 | –0.28 |
| Corrected by Wakeford et al. (2019) | ||||
| Flat-line | 61.41 | 3.41 | 112.13 | N/A |
| Atmosphere primary | 61.91 | 3.44 | 111.51 | –0.62 |
| Atmosphere secondary | 61.80 | 3.43 | 112.01 | –0.12 |
| Corrected by Morris et al. (2018) | ||||
| Flat-line | 65.11 | 3.62 | 110.39 | N/A |
| Atmosphere primary | 65.28 | 3.63 | 109.79 | –0.60 |
| Atmosphere secondary | 65.23 | 3.62 | 110.12 | –0.27 |
Notes. Chi-squared (χ2) and reduced chi-squared (
2) were computed using the result of the retrieval best-fit model and the stellar contamination models. Bayesian logarithm evidence (log(E)) and the Bayes factor (Δlog(E)) were computed when applicable, i.e. only for the atmospheric retrieval analysis.
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