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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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