Table 2
Prior and posterior distributions of the transit+GP model parameters used to analyse the TESS PDCSAP (sectors S6+S33).
| Parameter | Prior(a) | Best-fit values(b) |
|---|---|---|
| Orbital parameters | ||
| Porb, b [days] | 𝒰 (13.6,13.7) |  |
| Porb, c [days] | 𝒰 (3.5,3.6) |  |
| Porb, d [days] | 𝒰 (6.4,6.5) |  |
| Tconj,b [BJD-2450 000] | 𝒰 (9210.4,9210.8) |  |
| Tconj, c [BJD-2450 000] | 𝒰 (9207.1,9207.5) |  |
| Tconj, d [BJD-2450 000] | 𝒰 (9225.1,9225.5) |  |
| ip,b [degrees] | 𝒰 (80, 90) |  |
| ip,c [degrees] | 𝒰 (80, 90) |  |
| ip,d [degrees] | 𝒰 (80, 90) |  |
| Planet parameters | ||
| Rp, b/R⋆ | 𝒰 (0.0,0.1) |  |
| Rp, c/R⋆ | 𝒰 (0.0,0.1) | 0.0146 ± 0.0010(±0.0030) |
| Rp, d/R⋆ | 𝒰 (0.0,0.1) |  |
| Rp, b [R⊕] | derived |  |
| Rp, c [R⊕] | derived |  |
| Rp, d [R⊕] | derived |  |
| Stellar parameters | ||
| M⋆ [M⊙] | 𝒵𝒯𝒢 (0.88,0.04) | 0.89 ± 0.04 |
| R⋆ [R⊙] | 𝒵𝒯𝒢 (0.993,0.035) | 0 98 ± 0 03 |
| u1 | 𝒰 (0,1) | 0.26 ± 0.17 |
| u2 | 𝒰 (0,1) |  |
| Matérn GP parameters | ||
| ησ, S 6 | 𝒰 (0,100) |  |
| ησ, S 33 | 𝒰 (0,100) |  |
| ηρ, S 6 | 𝒰 (0,100) |  |
| ηρ, S 33 | 𝒰 (0,100) |  |
| Instrument-dependent parameters | ||
| F0,S6 [e−/s] | 𝒰 (−100,100) | 1.6 ± 0.7 |
| F0,S33 [e−/s] | 𝒰 (−100,100) |  |
| σTESS,S6 [e−/s] | 𝒰 (0,100) | 9.0 ± 0.5 |
| σTESS,S33 [e−/s] | 𝒰 (0,100) | 12.3 ± 0.4 |
Notes. (a)𝒰(a, b) indicates uniform distributions, being a and b the lower and upper limits. 𝒢(µ, σ) and 𝒵𝒯𝒢(µ, σ) indicate Gaussian and zero-truncated Gaussian distributions, being µ and σ the mean and width of the distributions. (b)The best-fit values are given as the median of the posterior distributions, and the uncertainties are given as the 16th and 84th percentiles (i.e. 1σ confidence interval), and as the 0.3th and 99.7th percentiles (i.e. 3σ confidence interval) for the planet parameters, the latter indicated in parentheses.
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