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Table A.2
Model parameters: posterior mode and 68.3% credible intervals.
| Parameter | Mode and 68.3% credible interval | ||
|
|
|||
| Stellar mass, M⋆ [M⊙]• | 0.612 ± 0.086 | ||
| Stellar radius, R⋆ [R⊙]• | 0.553 ± 0.041 | ||
| Stellar density, ρ⋆ [ρ⊙] | 3.58 ± 0.61 | ||
| Surface gravity, log g [cgs] | 4.734 ± 0.062 | ||
| Linear limb darkening coefficient, u• | 0.573 ± 0.088 | ||
| Systemic velocity, γ0 [ km s-1]• | 30.48024 ± 0.00063 | ||
| Planet b | Planet c | Planet d | |
| Semi-major axis, a [AU] | 0.0775 ± 0.0039 | 0.1405 ± 0.0067 | 0.2086 ± 0.010 |
| Eccentricity, e | [0, 0.12]∗ < 0.29‡ | [0, 0.08]∗ < 0.20‡ | [0, 0.09]∗ < 0.19‡ |
| Inclination, i [°]•,† | 89.59 |
89.70 ± 0.20 | 89.79 ± 0.15 |
| Argument of pericentre, ω [°] | 180 ± 70 | 89 ± 110 | 351 ± 66 |
| Longitude of the ascending node, n [°]• | 180 (fixed) | 180.0 ± 1.8 | 180.0 ± 1.8 |
| Mean anomaly, M [°] | 230 ± 69 | 21 ± 100 | 338 ± 67 |
| Period, P [days]• | 10.05429 ± 0.00022 | 24.6491 ± 0.0033 | 44.5705 ± 0.0059 |
| Transit epoch, T0 [BJD–2 450 000]• | 6813.41817 ± 0.00082 | 6812.2784 ± 0.0018 | 6826.2272 ± 0.0027 |
| Transit duration, T14 [h] | 2.563 ± 0.039 | 3.345 ± 0.079 | 4.07 ± 0.12 |
| Scaled semi-major axis, a/R⋆ | 30.74 |
55.90 |
82.9 |
| Transit impact parameter, b | 0.21 |
0.31 |
0.359 |
| Secondary eclipse impact parameter, bSE | 0.310 |
0.33 |
0.30 |
| Secondary eclipse epoch, TSE [BJD–2 450 000] | 6818.407 |
6824.59 ± 0.85 | 6848.72 |
| Secondary eclipse duration [h] | 2.55 ± 0.25 | 3.37 |
4.01 |
| RV semi-amplitude, K [ m s-1]• | 3.60 ± 0.87 | 0.61 |
2.84 ± 0.90 |
| Radius ratio, Rp/R⋆• | 0.03477 ± 0.00064 | 0.02770 ± 0.00070 | 0.02495 ± 0.00074 |
•
|
−0.283 |
0.01 ± 0.19 | 0.263 |
•
|
|
0.128 |
0.00 ± 0.16 |
| Planet mass, Mp [M⊕] | 8.4 ± 2.1 | 2.1 |
11.1 ± 3.5 |
| Planet radius, Rp[R⊕] | 2.078 |
1.644 |
1.53 ± 0.11 |
| Planet density, ρp [g cm-3] | 4.32 |
1.82 |
17.5 ± 6.3 |
| K2 long-cadence multiplicative jitter• | 1.020 ± 0.049 | ||
| HARPS multiplicative jitter• | 1.43 ± 0.13 | ||
| Amplitude of the ΔRV term, α• | −0.21 ± 0.19 | ||
Notes. The orbital elements have their origin at the star (Asteroidal parameters in the mercury code) and are osculating elements for reference time tref = 2 456 812 BJD. We have low confidence in the mass and density of planets c and d (Sect. 4).
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