Cloudy with a chance of metals: Indications of CO2 in the atmosphere of GJ 1214 b from high-resolution K-band spectroscopy

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Table A.1

Summary of the system parameters for the GJ 1214 system used in this study.

Adopted parameter	Symbol	Value	Ref.
Planet
Right Ascension	RA (hh:mm:ss)	17:15:18.934	(1)
Declination	Dec (dd:mm:ss)	+04:57:50.067	(1)
Radius	R_p (R_Earth)	${2.733}_{- 0.050}^{+ 0.052}$ $Mathematical equation: $\[2.733_{-0.050}^{+0.052}\]$$	(2)
Mass	M_p (M_Earth)	8.17 ± 0.43	(2)
Orbital period	P_orb (days)	1.58040433(13)	(2)
Orbital inclination	i (°)	${88.7}_{- 0.1}^{+ 0.1}$ $Mathematical equation: $\[88.7_{-0.1}^{+0.1}\]$$	(2)
Scaled semi-major axis	a/R_s	14.85 ± 0.16	(2)
Time of mid-transit	T₀ (BJD_TBD)	${2455701.413328}_{- 0.000059}^{+ 0.000066}$ $Mathematical equation: $\[2455701.413328_{-0.000059}^{+0.000066}\]$$	(2)
Surface gravity	g_p (m s⁻²)	${10.65}_{- 0.71}^{+ 0.67}$ $Mathematical equation: $\[10.65_{-0.71}^{+0.67}\]$$	(2)
Night-side temperature	T_{night side} (K)	437 ± 19	(3)
Day-side temperature	T_{day side} (K)	553 ± 9	(3)
RV semi-amplitude	K_p	102.5 ±2	(4)

Star
Radius	R_⋆ (R_⊙)	0.215 ± 0.008	(2)
Mass	M_⋆ (M_⊙)	0.178 ± 0.010	(2)
System velocity	v_sys (km s⁻¹)	+21.1 ± 1.0	(5, 6)
RV semi-amplitude	K_⋆ (m s⁻¹)	14.36 ± 0.53	(2)

References. 1. Wenger et al. (2000), 2. Cloutier et al. (2021), 3. Kempton et al. (2023), 4. Calculated from K_p = (2π a sin(i)/P), 5. Charbonneau et al. (2009), 6. Kasper et al. (2020) (the latter work corrects the sign of the value given in 5.)

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