Fig. 1
Time series of the RV (top) and the 
activity index (bottom). Red (green) dots correspond to HARPS data taken before (after) the fiber upgrade. The smoothed activity index, described in Sect. 3.1, is superimposed (black and gray dots) over the raw
values for comparison. We observe a long-term evolution in the RVs that is anticorrelated with the magnetic cycle (long-term evolution of the 
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