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Table 3

Retrieved best-fit parameters and their 1σ uncertainty intervals.

Parameter Description Prior range J0835 J0501 J0500
log 12CO log mixing ratio of 12CO [−12.0, −2.0] −2.85−0.02+0.02$\[-2.85_{-0.02}^{+0.02}\]$ −2.89−0.05+0.05$\[-2.89_{-0.05}^{+0.05}\]$ −3.03−0.02+0.02$\[-3.03_{-0.02}^{+0.02}\]$
log 13CO log mixing ratio of 13CO [−12.0, −2.0] −4.80−0.05+0.05$\[-4.80_{-0.05}^{+0.05}\]$ −5.06−0.15+0.14$\[-5.06_{-0.15}^{+0.14}\]$ −5.10−0.07+0.06$\[-5.10_{-0.07}^{+0.06}\]$
log H216O$\[\mathrm{H}_{2}^{16} \mathrm{O}\]$ log mixing ratio of H216O$\[\mathrm{H}_{2}^{16} \mathrm{O}\]$ [−12.0, −2.0] −3.23−0.02+0.02$\[-3.23_{-0.02}^{+0.02}\]$ −3.19−0.05+0.05$\[-3.19_{-0.05}^{+0.05}\]$ −3.29−0.02+0.02$\[-3.29_{-0.02}^{+0.02}\]$
log H218O$\[\mathrm{H}_{2}^{18} \mathrm{O}\]$ log mixing ratio of H218O$\[\mathrm{H}_{2}^{18} \mathrm{O}\]$ [−12.0, −2.0] −5.73−0.16+0.12$\[-5.73_{-0.16}^{+0.12}\]$ −8.92−1.99+1.96$\[-8.92_{-1.99}^{+1.96}\]$ −5.69−0.21+0.13$\[-5.69_{-0.21}^{+0.13}\]$
log HF log mixing ratio of HF [−12.0, −2.0] −7.03−0.05+0.05$\[-7.03_{-0.05}^{+0.05}\]$ −7.10−0.19+0.19$\[-7.10_{-0.19}^{+0.19}\]$ −7.30−0.06+0.06$\[-7.30_{-0.06}^{+0.06}\]$
log Ca log mixing ratio of Ca [−12.0, −2.0] −6.03−0.64+0.22$\[-6.03_{-0.64}^{+0.22}\]$ −5.86−1.38+0.40$\[-5.86_{-1.38}^{+0.40}\]$ −5.95−0.18+0.14$\[-5.95_{-0.18}^{+0.14}\]$
C/O Carbon-to-oxygen ratio − 0.65−0.02+0.02$\[0.65_{-0.02}^{+0.02}\]$ 0.68−0.04+0.04$\[0.68_{-0.04}^{+0.04}\]$ 0.71−0.01+0.01$\[0.71_{-0.01}^{+0.01}\]$
12C/13C Carbon isotope ratio − 89−11+11$\[89_{-11}^{+11}\]$ 15553+56$\[155_{53}^{+56}\]$ 117−17+20$\[117_{-17}^{+20}\]$
16O/18O Oxygen isotope ratio − 316−89+117$\[316_{-89}^{+117}\]$ − 251−76+122$\[251_{-76}^{+122}\]$
[F/H] Fluorine abundance w.r.t. solar − 0.41−0.05+0.05$\[0.41_{-0.05}^{+0.05}\]$ 0.26−0.19+0.19$\[0.26_{-0.19}^{+0.19}\]$ 0.07−0.06+0.06$\[0.07_{-0.06}^{+0.06}\]$
[C/H] Metallicity w.r.t. solar − 0.54−0.04+0.04$\[0.54_{-0.04}^{+0.04}\]$ 0.44−0.06+0.06$\[0.44_{-0.06}^{+0.06}\]$ 0.28−0.04+0.04$\[0.28_{-0.04}^{+0.04}\]$
log g log surface gravity (cm s−2) [4.00, 6.00] 5.40−0.03+0.03$\[5.40_{-0.03}^{+0.03}\]$ 4.51−0.07+0.07$\[4.51_{-0.07}^{+0.07}\]$ 5.55−0.03+0.03$\[5.55_{-0.03}^{+0.03}\]$
εlimb Limb darkening coefficient [0.00, 1.00] 0.63−0.07+0.06$\[0.63_{-0.07}^{+0.06}\]$ 0.37−0.22+0.28$\[0.37_{-0.22}^{+0.28}\]$ 0.31−0.20+0.24$\[0.31_{-0.20}^{+0.24}\]$
v sin i Projected rotational velocity (km s−1) [0.0, 40.0] 15.42−0.12+0.14$\[15.42_{-0.12}^{+0.14}\]$ 6.90−0.24+0.25$\[6.90_{-0.24}^{+0.25}\]$ 5.05−0.16+0.21$\[5.05_{-0.16}^{+0.21}\]$
vrad Radial velocity (km s−1) [−50.0, 50.0] 29.59−0.04+0.04$\[29.59_{-0.04}^{+0.04}\]$ 23.15−0.05+0.05$\[23.15_{-0.05}^{+0.05}\]$ 15.65−0.02+0.02$\[15.65_{-0.02}^{+0.02}\]$
∇T,0 Temperature gradient at P0 = 102 bar [0.12, 0.40] 0.15−0.02+0.03$\[0.15_{-0.02}^{+0.03}\]$ 0.15−0.09+0.09$\[0.15_{-0.09}^{+0.09}\]$ 0.22−0.06+0.06$\[0.22_{-0.06}^{+0.06}\]$
∇T,1 Temperature gradient at P1 [0.13, 0.40] 0.13−0.00+0.00$\[0.13_{-0.00}^{+0.00}\]$ 0.14−0.06+0.06$\[0.14_{-0.06}^{+0.06}\]$ 0.15−0.01+0.01$\[0.15_{-0.01}^{+0.01}\]$
∇T,2 Temperature gradient at P2 [0.03, 0.40] 0.06−0.00+0.00$\[0.06_{-0.00}^{+0.00}\]$ 0.10−0.02+0.02$\[0.10_{-0.02}^{+0.02}\]$ 0.09−0.01+0.01$\[0.09_{-0.01}^{+0.01}\]$
∇T,3 Temperature gradient at P3 [0.00, 0.40] 0.26−0.06+0.07$\[0.26_{-0.06}^{+0.07}\]$ 0.05−0.01+0.01$\[0.05_{-0.01}^{+0.01}\]$ 0.09−0.01+0.02$\[0.09_{-0.01}^{+0.02}\]$
∇T,4 Temperature gradient at P4 = 10−5 bar [−0.20, 0.20] 0.01−0.13+0.12$\[0.01_{-0.13}^{+0.12}\]$ 0.07−0.03+0.02$\[0.07_{-0.03}^{+0.02}\]$ 0.01−0.12+0.11$\[0.01_{-0.12}^{+0.11}\]$
log P3 log pressure of central (i = 3) knot [−3, 1] −0.30−0.06+0.08$\[-0.30_{-0.06}^{+0.08}\]$ 0.66−0.22+0.19$\[0.66_{-0.22}^{+0.19}\]$ 0.12−0.18+0.18$\[0.12_{-0.18}^{+0.18}\]$
Δ log P23 log pressure difference P2 and P3 [0.5, 2.0] 1.66−0.30+0.22$\[1.66_{-0.30}^{+0.22}\]$ 1.40−0.09+0.08$\[1.40_{-0.09}^{+0.08}\]$ 1.46−0.40+0.34$\[1.46_{-0.40}^{+0.34}\]$
Δ log P34 log pressure difference P3 and P4 [0.5, 1.0] 0.93−0.06+0.05$\[0.93_{-0.06}^{+0.05}\]$ 0.69−0.06+0.06$\[0.69_{-0.06}^{+0.06}\]$ 0.81−0.14+0.11$\[0.81_{-0.14}^{+0.11}\]$
T3 Temperature at central (i = 3) knot (K) [500, 2500] 1566−13+16$\[1566_{-13}^{+16}\]$ 1977−92+85$\[1977_{-92}^{+85}\]$ 1570−59+69$\[1570_{-59}^{+69}\]$
log a GP amplitude [−0.70, 0.30] −0.01−0.01+0.01$\[-0.01_{-0.01}^{+0.01}\]$ 0.07−0.01+0.01$\[0.07_{-0.01}^{+0.01}\]$ 0.12−0.00+0.00$\[0.12_{-0.00}^{+0.00}\]$
log ℓ GP length scale nm) [−3.00, −1.00] −1.32−0.02+0.02$\[-1.32_{-0.02}^{+0.02}\]$ −2.06−0.01+0.01$\[-2.06_{-0.01}^{+0.01}\]$ −1.58−0.01+0.01$\[-1.58_{-0.01}^{+0.01}\]$

Notes. We imposed uniform priors. The table includes the VMRs of the chemical species, physical properties (surface gravity and projected rotational velocity), temperature gradients and GP parameters.

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