Fig. A.4.
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Generalized Lomb-Scargle (GLS) periodogram of the activity indicators from the HARPS observations as determined from the HARPS-TERRA pipeline. The vertical dotted lines indicate the 0.76 days and twice this period (1.52 days). False alarm probabilities of 1%, 5%, and 10% are indicated with horizontal dotted, dashed and solid lines, respectively.
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