Table A.1
Priors used for the models listed in Table 2.
| Parameter | Priora |
|---|---|
| Stellar Activity - QP kernel | |
| h [m s−1 ] | 𝒰(0,500) |
| θ [d] | 𝒰(0,10) |
| λQP [d] | 𝒰(0,1000) |
| w | 𝒰(0,1) |
| Stellar Activity - QPC kernel | |
| h1 [m s−1] | 𝒰(0,500) |
| h2 [m s−1] | 𝒰(0,500) |
| θ [d] | 𝒰(0,10) |
| λQPC [d] | 𝒰(0,1000) |
| w | 𝒰(0,1) |
| Stellar Activity - dSHO kernel | |
| log A | 𝒰(0.05,10) |
| θ [d] | 𝒰(0,10) |
| log Q0 | 𝒰(-10,10) |
| log ΔQ | 𝒰(-10,10) |
| f | 𝒰(0,10) |
| Stellar Activity - Multi-dim. QP kernelb | |
| ARV, BRV [km s−1] | 𝒰(-0.1,0.1), 𝒰(-0.1,0.1) |
| ABIS, BBIS [km s−1] | 𝒰(-0.1,0.1), 𝒰(-0.1,0.1) |
| AR'HK, BR'HK [dex] | 𝒰(-0.1,0.1), fixed to 0 |
| Keplerian of planet b | |
| Kb [ms−1] | 𝒰(0,30) |
| Pb [d] | 𝒰(6.9,7.3) |
| Tconj,b [BJD-2 450 000] | 𝒰(9584.4,9584.7) |
 |
𝒰(-1,1) |
 |
𝒰(-1,1) |
| Keplerian of planet c | |
| Kc [m s−1] | 𝒰(0,30) |
| Pc [d] | 𝒰(19.5,21.5) |
| Tconj,c [BJD-2 450 000] | 𝒰(9583.5,9583.8) |
 |
𝒰(-1,1) |
 |
𝒰(-1,1) |
RV acceleration,  [m s−1 d−1] |
𝒰(-1,1) |
| Transit parameters for planet b | |
| Rb/R★ | 𝒰(0,1) |
| orbital plane inclination, ib [deg] | 𝒰(80,90) |
| Transit parameters for planet c | |
| Rc/R★ | 𝒰(0,1) |
| orbital plane inclination, ic [deg] | 𝒰(80,90) |
| Instrument-related | |
| γRV [m s−1] | DRS: 𝒰(-16000,-15500) |
| TERRA: 𝒰(-100,100) | |
| σjit,RV [m s−1] | 𝒰(0,50) |
| σjit, TESS Sect. 20 | 𝒰(0,300e-5) |
| σjit, TESS sect.44–47 | 𝒰(0,300e-5) |
| Limb darkening param.c q1 | 𝒰(0,1) |
| Limb darkening param.c q2 | 𝒰(0,1) |
Notes. (a)𝒰(a, b) denotes a prior drawn from an uninformative distribution in the range (a,b). 𝒩(a, b) denotes a prior drawn from a Gaussian distribution with mean a and sigma b. (b)We follow the notation of Eq. (8) in Barragán et al. (2022a) (c)Following Kipping (2013), q1 and q2 are related to the limb darkening coefficients LDc1 and LDc2 by the relations 
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