Fig. A.6
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Time series, Lomb-Scargle periodograms, and correlation with radial velocities for each activity index of the ESPRESSO dataset for LTT 1445A. For the middle column, the dotted, dashed, and plain horizontal lines indicate the levels for a false-alarm probability of 0.1%, 1%, and 10%, respectively. For the last column, the Pearson correlation coefficient is computed for each pair (activity index and RV). It is indicated as a number and with a face colour in each subplot. A coefficient of 1 (−1) indicates that the activity indey is correlated (anti-correlated) with the radial velocities. A coefficient of 0 indicates no correlation.
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