Table 4
Model parameters used in the transit analysis when trying to recover the planetary signal.
Parameter | Symbol | Prior | Correct value (a) | Units |
---|---|---|---|---|
Planet parameters | ||||
Orbital period | P | 𝓤(P𝑔 − 0.5, P𝑔 + 0.5) | 365.25 | days |
Transit time | T0 | 𝓤(T0,𝑔 − 0.5, T0,𝑔 + 0.5) | 0.4995−0.5005 (b) | days |
Planet-to-star radius ratio | RP /R⋆ | 𝓤(0.0, 0.02) | 0.009168 | – |
Scale semi-major axis | (R⋆ + Rp)/a | 𝓤(0.0, 0.02) | 0.004693 | – |
Cosine of inclination | cos(i) | 𝓤(0.0, 0.006) | varying | – |
White noise term | σ | 𝓤(45, 6738) | varying | ppm |
Stellar parameters | ||||
Stellar mass | M⋆ | 𝒩 (1.00,0.05) | 1.0 | M⊙ |
Stellar radius | R⋆ | 𝒩 (1.000,0.015) | 1.0 | R⊙ |
limb-darkening coefficients | q1 | 𝒩 (0.392,0.05) | – | – |
q2 | 𝒩 (0.322,0.05) | – | – | |
SHO GP | ||||
Scaled amplitude | In(S0) | 𝒩 (−26.79,0.04) | – | – |
Quality factor | ln(Q) | 𝒩 (−0.402,0.025) | – | – |
Angular Frequency | ln(ω0) | 𝒩 (6.932,0.011) | – | – |
Notes. Initial guess values retrieved by the previous transit search algorithm a denoted by a lower case g. The Gaussian priors with mean µ and standard deviation σ are displayed as 𝒩(µ, σ). 𝓤(Ul, Uu) represents an uniform prior with Ul and Uu as lower and upper limits respectively. (a) Value of the injected transit signal. (b)The injected transit mid-time is always the exact middle of the dataset, which varies across the different observations according to the exact observation times of the SDO images.
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