Table 2
Model parameters for the fit of the CHEOPS data.
| Jump parameters | Symbol | Units | No planet | free Porb circular orbit | Porb = 45.0033 d circular orbit | Porb = 45.0033 d eccentric orbit | Prior |
|---|---|---|---|---|---|---|---|
| SHO kernel | |||||||
| Amplitude scale | log σSHO |  |
 |
 |
 |
𝒰(−6−2) | |
| Primary frequency≡Rotational frequency | v0 ≡ vrot | day−1 |  |
 |
 |
 |
𝒩(0.346,0.002) |
| Timescale |  |
 |
 |
 |
 |
𝒰(0,5) | |
| Instrument-related parameters | |||||||
| Decorrelation against xPSF | Cx | pix−1 |  |
 |
 |
 |
𝒰(−0.0005,0.0005) |
| Decorrelation against yPSF | Cy | pix−1 |  |
 |
 |
 |
𝒰(−0.0005,0.0005) |
| Stellar and planetary parameters | |||||||
| Stellar density(a) | ρ★ | ρ⊙ | – |  |
 |
 |
𝒩(0.56,0.10) |
| Time of inferior conjunction −2 450 000 | T0 | BJDTDB | – |  |
 |
 |
𝒰(9901.8,9932.5) |
| Orbital period | Porb | day | – |  |
– | – | 𝒰(35,100) |
| Planet-to-star radius ratio | Rp/R★ | – |  |
 |
 |
𝒰(0,0.2) | |
| Impact parameter | b | – |  |
 |
 |
𝒰(0,0.8) | |
| Orbital eccentricity | e | – | – | – |  |
𝒰(0,l) | |
| Argument of periastron(b) | ω★ | rad | – | – | – |  |
𝒰(0,2π) |
| Linear LD coefficient | u1 | – |  |
 |
 |
see text | |
| Quadratic LD coefficient | u2 | – |  |
 |
 |
see text | |
| Derived parameters | |||||||
| Planetary radius | Rp | RJup | – |  |
 |
 |
|
| Scaled semi-major axis | a/R★ | – |  |
 |
 |
||
| Orbital inclination | i | deg | – |  |
 |
 |
|
| Transit duration | T14 | hr | – |  |
 |
 |
|
| Bayesian Information Criterion | BIC | −34048 | −34064 | −34072 | −34054 | ||
The best-fit values are given as the median of the posterior distributions, and the uncertainties are given as the 16th and 84th percentiles. (a)We adopted the stellar mass and radius derived by Suárez Mascareño et al. (2021): M = 1.170 ± 0.060 M⊙, R = 1.278 ± 0.070 R⊙. (b)Referred to the stellar descending point.
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