Open Access
Table A.1
Overview of the 16 atmospheric parameters considered in this work, with the respective priors used for all retrievals, as well the parameter values θ0 of the “benchmark spectrum” (cf. section 4.1).
| Parameter | Prior | θ0 value | Meaning |
|---|---|---|---|
| C/O | 𝒰(0.1, 1.6) | 0.55 | Carbon-to-oxygen ratio |
| [Fe/H] | 𝒰(−1.5, 1.5) | 0.00 | Metallicity |
| log Pquench | 𝒰(−6.0, 3.0) | −5.00 | Pressure below which the CO, CH4 and H2O abundances are taken as vertically constant |
| S eq,Fe | 𝒰(−2.3, 1.0) | −0.86 | Scaling factor for equilibrium cloud abundances (Fe) |
 |
𝒰(−2.3, 1.0) | −0.65 | Scaling factor for equilibrium cloud abundances (MgSiO3) |
| fsed | 𝒰(0.0, 10.0) | 3.00 | Sedimentation parameter for both cloud types |
| log Kzz | 𝒰(5.0, 13.0) | 8.50 | Vertical eddy diffusion coefficient (in cm2 s−1) |
| σg | 𝒰(1.05, 3.0) | 2.00 | Width of the (log-normal) cloud particle size distribution |
| logg | 𝒰(2.0, 5.5) | 3.75 | Surface gravity |
| RP | 𝒰(0.9, 2.0) | 1.00 | Planet radius (in Jupiter radii) |
| Tint | 𝒰(300, 2300) | 1063.60 | Interior temperature of the planet (in Kelvin) |
| T3 | 𝒰(0.0, 1.0) | 0.26 | Inner support point for pressure-temperature spline at high altitudes |
| T2 | 𝒰(0.0, 1.0) | 0.29 | Middle support point for pressure-temperature spline at high altitudes |
| T1 | 𝒰(0.0, 1.0) | 0.32 | Outer support point for pressure-temperature spline at high altitudes |
| α | 𝒰(1.0, 2.0) | 1.39 | Exponent in τ = δPα (i.e., the assumed power law for the optical depth τ) |
| log δ | 𝒰(0.0, 1.0) | 0.48 | Proportionality factor in τ = δPα (see above) |
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