Open Access

Table A.1

Parameters used for the standard reduction and retrievals, with priors and posteriors from the white light curve fit.

Name Symbol Unit Order Prior Posterior Note
Star

Mass M* M 0.691
Radius R* R 0.679 [1], (a)
Effective temperature TeffMathematical equation: $T_\mathrm{eff}^{\star}$ K 4665
Surface gravity log g* log(g cm−3) 4.614 (4.5) [1], (a), (b)
Metallicity [Fe/H] −0.20 [1], (a)
Distance d pc 142.751

Orbit

Period P d 3.21305751 [2], [A]
Transit mid-time t0 BMJD 60115 + U(0.3,0.6) 60115.447938(12) [B], (c), (d)
Semimajor axis a au 0.03767 [1]
Scaled semimajor axis a/R* N (11.9,0.3) 11.69(3) [1], [B], (e)
Impact parameter b N (0.19,0.05) 0.258(11)
Eccentricity
Argument of periastron
e
ω
° 0
90
[1], [A], (f)

Planet

Mass Mp MJup 0.201 [1]
Radius ratio Rp/R* 1
2
U(0.01,0.9) 0.13794(17)
0.13825(23)
[A], (d)

Limb darkening

Quadratic LDCs q1

q2
1
2
1
2
q1 ∈ [0, 1]

q2 ∈ [0, 1]
0.115(11)
0.282(17)
0.57(5)
0.59(3)
[C], (d), (g)

Systematic

Dilution factor D 1,2 1
Relative out-of-transit flux
Jitter term
M
σω
ppm 1,2
1
2
N (0.0,0.1)
L(10−1,104)
|M| < 10−5
95(5)
146(10)
[A]

Notes. Uncertainties are given in parentheses for brevity and correspond to the 1σ errors in the last digits. Priors: U = Uniform, N = Normal, L = Log-uniform; References: [1] Mancini et al. (2018), [2] Kokori et al. (2022); Spectral light curves: [A] Same prior used, [B] Fixed to median value from white light curves, [C] Fixed to values from theoretical models; Minor remarks: (a) Used for wavelength calibration & calculation of spectral light curve LDCs, (b) Value of 4.5 used for spectral LDCs due to grid limitations, (c) BMJD := BJD - 2400000.5, (d) Wide uninformative prior, (e) Prior calculated from literature values, (f) Assumption of circular orbit (based on Bonomo et al. 2017), (g) Use of Kipping (2013) parametrization.

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