Table 3
Prior distribution of the parameters used in our models.
| Symbol | Parameter | Distribution |
|---|---|---|
| Orbital parameters | ||
| P [days] | Orbital period | 𝒢 (7.397,0.002) |
| T0 [RJD] | Time of inf. conj. | 𝒢 (58357.36,0.02) |
| i [degrees] | Orbital inclination | 𝒰 (50,90) |
 |
Ecc. parametrization |  |
 |
Ecc. parametrization |  |
| Planet parameters | ||
| Rp/R⋆ | Planet-to-star radius ratio | 𝒰(0.0,0.1) |
| K [m s−1] | RV semi-amplitude | 𝒰 (1,10) |
| Stellar parameters | ||
| M⋆ [M⊙] | Stellar mass | 𝒵𝒯𝒢 (0.427,0.029) |
| R⋆ [R⊙] | Stellar radius | 𝒵𝒯𝒢 (0.428,0.025) |
| u1 | LD coefficient | 𝒵𝒯𝒢 (0.2204,0.0011) |
| u2 | LD coefficient | 𝒵𝒯𝒢 (0.4112,0.0017) |
| Matérn-3/2 GP hyperparameters | ||
 |
S2 amplitude | 𝒰 (0, 102) |
 |
S2 timescale | 𝒰 (0, 102) |
 |
S29 amplitude | 𝒰 (0, 102) |
 |
S29 amplitude | 𝒰 (0, 102) |
| Quasiperiodic GP hyperparameters | ||
| ŋ1,RV [m s−1] | Amplitude (RV) | ℒ𝒰 (10−2,10) |
| ŋ2,RV [days] | Decay timescale | 𝒰(0,5 × 102) |
| ŋ3,RV [days] | Correlation period | 𝒰 (40, 80) |
| ŋ4,RV | Periodic scale | ℒ𝒰 (10−3,10) |
| ŋ1,FWHM [m s−1] | Amplitude (FWHM) | ℒ𝒰 (10−2,10) |
| Instrument-dependent parameters (TESS) | ||
| F0,S2 [e−s−1] | TESS S2 flux offset | 𝒰 (−102,102) |
| F0,S29 [e− s−1] | TESS S29 flux offset | 𝒰 (−102,102) |
| σTESS,S2 [e− s−1] | TESS S2 jitter | 𝒰 (0,102) |
| σTESS,S29 [e− s−1] | TESS S29 jitter | 𝒰 (0,102) |
| Instrument-dependent parameters (ESPRESSO and HARPS) | ||
| γESPR,RV [m s−1] | ESPR. sys. RV | 𝒰 (13 000, 16 000) |
| γHAR,RV [m s−1] | HARPS sys. RV | 𝒰 (13 × 103,16 × 103) |
| γESPR,FWHM [m s−1] | ESPR. sys. FWHM | 𝒰 (0, 104) |
| γHAR,FWHM [m s−1] | HARPS sys. FWHM | 𝒰 (0, 104) |
| σESPR,RV [m s−1] | ESPR. RV jitter | 𝒰 (0, 10) |
| σНАR,RV [m s−1] | HARPS RV jitter | 𝒰 (0, 10) |
| σESPR,FWHM [m s−1] | ESPR. FWHM jitter | 𝒰 (0, 10) |
| σHAR,FWHM [m s−1] | HARPS FWHM jitter | 𝒰 (0, 10) |
| Orbital and planet parameters of an additional Keplerian | ||
| P2 [days] | Orbital period | 𝒰(0, 5 × 102) |
| T0,2 [RJD] | Time of inf. conj. | 𝒰 (58467, 59855) |
 |
Ecc. parametrization |  |
 |
Ecc. parametrization |  |
| K2 [m s−1] | RV semi-amplitude | 𝒰 (1, 10) |
Notes. The 𝒰(a, b) and ℒ𝒰(a, b) symbols indicate uniform and loguniform distributions, being a and b the lower and upper limits. The 𝒢(µ, σ) and 𝒵𝒯𝒢(µ, σ) symbols indicate Gaussian and zero-truncated Gaussian distributions, being µ and e the mean and width of the distributions. RJD refers to the Reduced Julian Day (JD – 2 400 000).
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