Significance of the Keplerian signals for the blind search in the radial velocity time-series. The x-axis shows the joint GP-RV model we used for the inference from one Keplerian (M1) and up to five Keplerians (M5). The y-axis indicates the subdivision of the orbital period parameter space with a bin size of 0.5 days cut ait 30 days. One cell corresponds to a pair model or bin that indicase s the model we used for the inference and the prior on the orbital period of the plantet. The logarithm of the ratio of the Bayesian evidence (Bayes factor) between the pair model (M_x)/bin and the best pair model (M_x−1)/bin is colour-coded from weak (value of 0) to strong (value of 15 or above) to indicate the significance of the signal detected in the corresponding bin (except for the first column, in which the Bayes factor of each pair M1/bin is computed with the worst pair M1/worst bin). The orbital period obtained for the best signal of each iteration is written in black in the corresponding cell. An example: the cell corresponding to the M2 joint GP-two Keplerion model for the period subdivision of 3–3.5 days (the retrieved period is 3.13 days) indicates a strong significance of this signal compared to a GP-RV model with only one Keplerian at 5.36 days, which was the best signal detected with the previous iteration with M1