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Fig. 21


Evolution of the significance of the detected signals as a function of the number of measurements (left panel) andthe date of the observations (right panel). Green filleddots, green empty dots, and blue filled dots show the HARPS pre-upgrade, HARPS post-upgrade, and HARPS-N measurements, respectively. The horizontal red dotted line, green dashed line, and blue solid line show the 10%, 1%, and 0.1% FAP thresholds. The grey dashed lines show a linear fit to the evolution of the PSD after the signals cross the 1% FAP threshold.

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