Fig. 4
Top panel: GLS periodogram of RVs measured with HARPS-N with a significant peak at 101.54 days, the horizontal dashed lines represent the false alarm probabilities (FAP) of 0.1% (green line), 1% (orange) and 10% (red), respectively. Botton panel: periodogram of the residuals data after subtracting the orbital fit. The red solid line indicates the location of the maximum period found with the RV.
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