Table 4
Retrieval sensitivity analysis results.
| R | S/N | Range [μm] | log10(H2O) | log10(CO2) | log10 (O3) | log10(CH4) | log10(CO) | log10(N2O) |
|---|---|---|---|---|---|---|---|---|
| 20 | 10 | 3−20 | −6.13± 0.38 | −6.51 ± 0.33 | −7.22±0.38 | −6.04±0.51 | −414±1.32 | −3.39±1.23 |
| 6−17 | −6.11± 0.54 | −6.61 ± 0.52 | −7.04±0.30 | −5.91±0.57 | UC | −3.09±1.04 | ||
| 20 | 3−20 | −6.68±0.45 | −7.08±0;48 | −7.55±0.27 | −6;68±0.53 | −5.28±0.63 | −4.55±1.05 | |
| 6−17 | −6.63± 0.40 | −7.05± 0.44 | −7.47± 0.37 | −6.67±0.56 | UC | −4.30±1.02 | ||
| 50 | 10 | 3−20 | −6:60± 0:49 | −7.08±0.52 | −7.45±0.31 | −6.49±0.42 | −5.26±0.67 | −4.33±1.07 |
| 6−17 | −6.47 ± 0.45 | −7.05 ± 0.46 | −7.46± 0.28 | −6.56±0.55 | UC | −3.86± 0.98 | ||
| 20 | 3−20 | −6.99 ±0.34 | −7.48± 0.34 | −7.75 ±0.22 | −7.09±0.45 | −5.82±0.36 | −5.28±0.75 | |
| 6−17 | −6.98 ± 0.34 | −7.50± 0.41 | −7.84±0.36 | −7.08±0.33 | UC | −5.10± 0.87 | ||
| 1000 | 50 | 3−20 | −9.29 ± 0.25 | −9.27± 0;27 | −9.02±0.27 | −8.81±0:29 | −7.88±0.29 | −8.35±0.35 |
| Terrestrial abundances: | −3.00 | −3.39 | −5.77 | −6.52 | −6.90 | −6.50 | ||
| LIFE retrieval expectation: | ✓ | ✓ | ✓ | ~ | × | × | ||
Notes. All abundances are given in mass fractions in log10. We provide the threshold abundances for a detection at different R and S/N configurations, which we define as the half maximum of the retrieved soft step posterior distribution. Additionally, we provide the 16th and 84th percentile of the logistic function as denoted by the ±. A UC indicates that the retrieval does not manage to constrain the species of interest. In the last two rows, we display the assumed Earth-twin abundances and whether we expect such an abundance to be retrievable in low R and S/N cases, respectively: ✓ = retrievable; ~ = case dependant; × = not retrievable.
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