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Table 3

Grid priors and posteriors for each forward model are presented in this section.

Parameter Teff (K) log(g) (dex) [M/H] C/O γ fsed log(12C/13C) log(L/L) (dex)
Exo-REM priors U (1200, 2000) U(3.5, 4.5) U (−0.5, 1) U(0.4, 0.65) U (1.0, 2.6)
Exo-REM posteriors B (1551.89, 1604.44) B (4.18, 4.44) B(0.65, 0.83) 0.55 ± 0.01 < 1.08 B (−3.723, −3.719)
strongest node 1607.456.20+4.85$1607.45_{ - 6.20}^{ + 4.85}$ 4.460.04+0.02$4.46_{ - 0.04}^{ + 0.02}$ 0.82 ± 0.02 0.55 ± 0.01 < 1.08 −3.723 ± 0.002

ATMO priors U (1400, 1900) U(3.5, 4.5) U(−0.6, 0.6) U (1.01, 1.05) U (1.0, 2.6)
ATMO posteriors > 1894.93 < 3.51 −0.17 ± 0.02 > 1.05 < 1.55 −3.780 ± 0.001

BT-Settl priors U (1400, 2000) U(3.5, 5.0) U (0.2754, 1.096)
BT-Settl posteriors 1668.435.55+5.62${\rm{1668}}{\rm{.43}}_{ - 5.55}^{ + 5.62}$ 3.60 ± 0.04 0.65 ± 0.02 −3.745 ± 0.006

Sonora priors U(900, 2400) U(3.5, 5.5) U(−0.5, 0.5) U (1, 8)
Sonora posteriors 1625.6711.21+11.48${\rm{1625}}{\rm{.67}}_{ - 11.21}^{ + 11.48}$ 4.560.07+0.06$4.56_{ - 0.07}^{ + 0.06}$ > 0.49 < 1.03 −3.791 ± 0.001

Notes. Hereafter U(a, b) refers to a uniform distribution and B(a, b) to a bimodal distribution between a and b. The error bars correspond to the lower and upper bonds in the parameter space encompassing 68% of the retrieved solutions around the best fit. The C/O ratio is fixed at 0.55 for ATMO, 0.458 for Sonora and the metallicity is fixed at 0.0 for the BT-Settl.

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