TOI-1438: A rare system with two short-period sub-Neptunes and a tentative long-period Jupiter-like planet orbiting a K0V star

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Table 6

Best fit compositional parameters, planetary masses, and equilibrium temperatures derived from our MCMC interior structure analysis.

		Planet b		Planet c
Parameter	Description	Priors	Posteriors	Priors	Posteriors
CMFZ(CMF+MMF)	Fe-to-refractory mass ratio	U[0, 1]	${0.41}_{- 0.29}^{+ 0.32}$ $0.41$^{+0.32}_{-0.29}$$	U[0, 1]	${0.41}_{- 0.29}^{+ 0.32}$ $0.41$^{+0.32}_{-0.29}$$
M_p	Planet mass (M_⊙)	N [9.4, 1.8]	9.7±1.7	N[10.6, 2.1]	10.6 ± 2.1
WMF	Water mass fraction	U[0, 1]	${0.82}_{- 0.15}^{+ 0.12}$ $0.82$^{+0.12}_{-0.15}$$	U[0, 1]	${0.60}_{- 0.16}^{+ 0.15}$ $0.60$^{+0.15}_{-0.16}$$
T_eq	Equilibrium temperature (K)	N [975, 11]	975 ± 10	N [794, 9]	794 ±9

Notes. The posterior columns represent the mean and uncertainties from the posterior distributions.

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