Osiris revisited: Confirming a solar metallicity and low C/O in HD 209458 b

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Table A.3

Summary of retrievals run on the combined HST-JWST spectra using the more complex cloud model or a more informed prior for the CO abundance.

retrieval model	complex clouds	complex patchy clouds	complex clouds	clouds

line species	all	all	only H₂O, CO₂	all, using a more informed prior for CO
M_pl [M_Jup]	${0.68}_{- 0.01}^{+ 0.01}$ $\[0.68_{-0.01}^{+0.01}\]$	${0.68}_{- 0.01}^{+ 0.01}$ $\[0.68_{-0.01}^{+0.01}\]$	${0.68}_{- 0.01}^{+ 0.01}$ $\[0.68_{-0.01}^{+0.01}\]$	${0.68}_{- 0.01}^{+ 0.01}$ $\[0.68_{-0.01}^{+0.01}\]$
R_pl [R_Jup]	${1.36}_{- 0.01}^{+ 0.01}$ $\[1.36_{-0.01}^{+0.01}\]$	${1.36}_{- 0.01}^{+ 0.01}$ $\[1.36_{-0.01}^{+0.01}\]$	${1.35}_{- 0.01}^{+ 0.01}$ $\[1.35_{-0.01}^{+0.01}\]$	${1.36}_{- 0.01}^{+ 0.01}$ $\[1.36_{-0.01}^{+0.01}\]$
log (P_ref) [log (bar)]	$- {0.70}_{- 0.98}^{+ 1.02}$ $\[-0.70_{-0.98}^{+1.02}\]$	$- {0.61}_{- 0.91}^{+ 0.91}$ $\[-0.61_{-0.91}^{+0.91}\]$	$- {0.38}_{- 0.95}^{+ 0.83}$ $\[-0.38_{-0.95}^{+0.83}\]$	$- {1.25}_{- 0.87}^{+ 1.00}$ $\[-1.25_{-0.87}^{+1.00}\]$
T [K]	${1012.61}_{- 79.58}^{+ 76.46}$ $\[1012.61_{-79.58}^{+76.46}\]$	${1083.91}_{- 103.67}^{+ 98.79}$ $\[1083.91_{-103.67}^{+98.79}\]$	${1008.69}_{- 83.96}^{+ 79.20}$ $\[1008.69_{-83.96}^{+79.20}\]$	${1094.30}_{- 118.64}^{+ 112.37}$ $\[1094.30_{-118.64}^{+112.37}\]$
log (P_cloud) [log (bar)]	$- {1.27}_{- 0.78}^{+ 0.99}$ $\[-1.27_{-0.78}^{+0.99}\]$	$- {1.35}_{- 0.85}^{+ 0.98}$ $\[-1.35_{-0.85}^{+0.98}\]$	$- {1.17}_{- 0.77}^{+ 0.95}$ $\[-1.17_{-0.77}^{+0.95}\]$	$- {2.84}_{- 0.40}^{+ 0.40}$ $\[-2.84_{-0.40}^{+0.40}\]$
$\log (K_{base}) [\log (\frac{{c m}^{2}}{g})]$ $\[\log ~\left(K_{\text {base }}\right)\left[\log \left(\frac{\mathrm{cm}^{2}}{\mathrm{~g}}\right)\right]\]$	${12.99}_{- 4.94}^{+ 4.23}$ $\[12.99_{-4.94}^{+4.23}\]$	${13.15}_{- 5.13}^{+ 4.26}$ $\[13.15_{-5.13}^{+4.26}\]$	${13.37}_{- 5.29}^{+ 3.99}$ $\[13.37_{-5.29}^{+3.99}\]$	. . .
f_sed	${5.97}_{- 1.79}^{+ 1.96}$ $\[5.97_{-1.79}^{+1.96}\]$	${5.64}_{- 1.83}^{+ 2.21}$ $\[5.64_{-1.83}^{+2.21}\]$	${6.43}_{- 1.77}^{+ 1.84}$ $\[6.43_{-1.77}^{+1.84}\]$	. . .
log (λ₀) [log (μm)]	$- {0.98}_{- 1.00}^{+ 0.84}$ $\[-0.98_{-1.00}^{+0.84}\]$	$- {1.06}_{- 1.17}^{+ 0.93}$ $\[-1.06_{-1.17}^{+0.93}\]$	$- {0.91}_{- 1.12}^{+ 0.81}$ $\[-0.91_{-1.12}^{+0.81}\]$	. . .
p	${4.34}_{- 1.31}^{+ 1.00}$ $\[4.34_{-1.31}^{+1.00}\]$	${4.12}_{- 1.36}^{+ 1.14}$ $\[4.12_{-1.36}^{+1.14}\]$	${4.33}_{- 1.51}^{+ 1.01}$ $\[4.33_{-1.51}^{+1.01}\]$	. . .
cloud fraction	. . .	${0.77}_{- 0.11}^{+ 0.10}$ $\[0.77_{-0.11}^{+0.10}\]$	. . .	. . .
log (χ_H₂O)	$- {2.81}_{- 0.71}^{+ 0.47}$ $\[-2.81_{-0.71}^{+0.47}\]$	$- {3.48}_{- 0.73}^{+ 0.71}$ $\[-3.48_{-0.73}^{+0.71}\]$	$- {2.86}_{- 0.96}^{+ 0.51}$ $\[-2.86_{-0.96}^{+0.51}\]$	$- {2.80}_{- 0.41}^{+ 0.42}$ $\[-2.80_{-0.41}^{+0.42}\]$
log (χ_CH₄)	$- {9.67}_{- 1.87}^{+ 1.84}$ $\[-9.67_{-1.87}^{+1.84}\]$	$- {10.01}_{- 1.73}^{+ 1.7}$ $\[-10.01_{-1.73}^{+1.7}\]$	. . .	$- {9.42}_{- 2.26}^{+ 2.24}$ $\[-9.42_{-2.26}^{+2.24}\]$
log (χ_NH₃)	$- {9.49}_{- 2.03}^{+ 2.32}$ $\[-9.49_{-2.03}^{+2.32}\]$	$- {9.47}_{- 2.09}^{+ 2.18}$ $\[-9.47_{-2.09}^{+2.18}\]$	. . .	$- {9.02}_{- 2.55}^{+ 2.73}$ $\[-9.02_{-2.55}^{+2.73}\]$
log (χ_HCN)	$- {9.84}_{- 1.90}^{+ 2.01}$ $\[-9.84_{-1.90}^{+2.01}\]$	$- {9.89}_{- 1.88}^{+ 1.91}$ $\[-9.89_{-1.88}^{+1.91}\]$	. . .	$- {9.74}_{- 2.21}^{+ 2.32}$ $\[-9.74_{-2.21}^{+2.32}\]$
log (χ_Na)	$- {8.22}_{- 2.92}^{+ 3.40}$ $\[-8.22_{-2.92}^{+3.40}\]$	$- {7.92}_{- 3.13}^{+ 3.34}$ $\[-7.92_{-3.13}^{+3.34}\]$	. . .	$- {7.88}_{- 3.39}^{+ 3.65}$ $\[-7.88_{-3.39}^{+3.65}\]$
log (χ_CO₂)	$- {6.18}_{- 0.66}^{+ 0.44}$ $\[-6.18_{-0.66}^{+0.44}\]$	$- {6.68}_{- 0.65}^{+ 0.63}$ $\[-6.68_{-0.65}^{+0.63}\]$	$- {6.23}_{- 0.88}^{+ 0.46}$ $\[-6.23_{-0.88}^{+0.46}\]$	$- {6.16}_{- 0.39}^{+ 0.38}$ $\[-6.16_{-0.39}^{+0.38}\]$
log (χ_CO)	$- {6.35}_{- 3.74}^{+ 1.99}$ $\[-6.35_{-3.74}^{+1.99}\]$	$- {8.29}_{- 2.86}^{+ 2.57}$ $\[-8.29_{-2.86}^{+2.57}\]$	. . .	$- {4.15}_{0.30}^{+ 0.51}$ $\[-4.15_{0.30}^{+0.51}\]$
offset	${5.24}_{- 2.11}^{+ 2.31}$ $\[5.24_{-2.11}^{+2.31}\]$ · 10⁻⁵	${6.60}_{- 2.54}^{+ 2.81}$ $\[6.60_{-2.54}^{+2.81}\]$ · 10⁻⁵	${5.54}_{- 2.03}^{+ 2.36}$ $\[5.54_{-2.03}^{+2.36}\]$ · 10⁻⁵	${1.12}_{- 0.16}^{+ 0.16}$ $\[1.12_{-0.16}^{+0.16}\]$ · 10⁻⁴

Notes. The abundances of all line-absorbing species are converted to log volume mixing ratios. For the more complex cloud model, log (P_cloud) is the cloud base pressure log (P_base) (see Eq. (2)). For a description of the cloud models, see Table 3.

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