Fig. 2
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HARPS RV residuals, periodogram, and activity periodograms. Top: HARPS RV residuals after fitting CORALIE and HARPS data with a two-planet plus trend model and its corresponding and GLS periodogram. Bottom: GLS periodograms for the HARPS data activity indicators CCF FWHM, CCF BIS, and Mt Wilson S index SMW from top to bottom respectively. The gray vertical bands show the possible rotation period Prot = 33 ± 3 days and harmonics Prot/2 and Prot/3.
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