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Fig. 7

image

a) Tentative fit of the stellar activity cycle for HARPS-N and HIRES data of log . Data points (grey dots) are plotted together with the mean values of each observing season (red dots). b) Fitted RV jitters for the separate observing seasons of HIRES, HRS and HARPS-N datasets, when activity model is not included in the data. c) Semi-amplitude of the fitted RV sinusoid. d) Phase of the fitted RV sinusoid.

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