A comprehensive study on radial velocity signals using ESPRESSO: Pushing precision to the 10 cm/s level

Open Access

Fig. 6

Lomb-Scargle periodogram for the activity indicators for the stars HD 10700 (left), HD 102365 (centre), and HD 304636 (right). On the upper panels we have the photospheric indicators FWHM, line contrast, and BIS, and on the bottom on we have $\log (R_{H K}^{'})$ $\[\log(R_{H K}^{\prime})\]$ and the two Ha parametrisations. The FAP levels of 1, 0.1, and 0.01% are shown as horizontal grey lines.

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