Table 2
Model parameters.
| Parameter | Maximum a posteriori values with 16th and 84th percentiles | ||
|---|---|---|---|
| Stellar parameters | |||
| Stellar mass, Ms [M⊙] | 0.181 ± 0.019 | ||
| Stellar radius, Rs [R⊙] |  |
||
| Stellar luminosity, Ls [L⊙] | 0.00438 ± 0.00034 | ||
| Effective temperature, Teff [K] | 3270 ± 140 | ||
| Rotation period, Prot (days) |  |
||
| Systemic velocity, γ0 (m s−1) | 35078.8 ± 0.8 | ||
| Gaussian process hyperparameters | |||
| ln correlation amplitude, lna (m s−1) |  |
||
| ln exponential timescale, lnλ (days) |  |
||
| ln coherence parameter, ln Γ |  |
||
| ln periodic timescale, lnPGP (days) |  |
||
| Additive jitter, s (m s−1) |  |
||
| GJ1132b | GJ1132c | GJ1132(d) | |
| Derived parameters | |||
| Period, P (days) | 1.628931 ± 0.000027 | 8.929 ± 0.010 | 176.9 ± 5.1 |
| Time of inferior conjunction, T0 [BJD-24 50 000] | 7184.55786 ± 0.00031 | 7506.02 ± 0.34 |  |
| Radial velocity semi-amplitude, K (m s−1) | 2.85 ± 0.34 | 2.57 ± 0.39 |  |
 |
0.05 ± 0.13 |  |
 |
 |
− 0.12 ± 0.25 | 0.14 ± 0.24 | − 0.05 ± 0.29 |
| Calculated parameters | |||
| Semi-major axis, a (AU) | 0.0153 ± 0.0005 | 0.0476 ± 0.0017 | 0.35 ± 0.01 |
| Eccentricity, ea | <0.22 | <0.27 | <0.53 |
| Planet mass, Mp [M⊕] | 1.66 ± 0.23 | – | – |
| Minimum planet mass, Mp sini [M⊕] | 1.66 ± 0.23 | 2.64 ± 0.44 |  |
| Planet density, ρp (g cm-3)b | 6.3 ± 1.3 | – | – |
| Surface gravity, g (m s-2)b | 12.9 ± 2.2 | – | – |
| Escape velocity, vesc(km s-1)b | 13.6 ± 1.0 | – | – |
| Equilibrium temperature, Teq [K] | |||
| Bond albedo of 0.3 (Earth-like) | 529 ± 9 | 300 ± 5 | 111 ± 2 |
| Bond albedo of 0.75 (Venus-like) | 409 ± 7 | 232 ± 4 | 86 ± 1 |
Notes. Maximum a posteriori and 68.3% confidence intervals. Planets b and c are considered robust detections, but planet (d) is considered a planet candidate, but may also be the result of stellar activity.(a) Upper limit, 95th percentile of the posterior PDF. M⊙ = 1.98842 × 1030 kg, R⊙ = 6.95508 × 108 m, M⊕ = 5.9736 × 1024 kg, and R⊕ = 6 378 137 m. (b) Assuming a planetary radius of 1.13 ± 0.056 R⊕(Dittmann et al. 2017a).
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