Fig. 4
GLS periodograms of activity indicators derived from the CARMENES spectra of HD 180617 with lines (dotted, dash-dotted, and dashed) at FAP levels of 10, 1, and 0.1%. The vertical red and black lines represent the best-fit planet period at Pb = 105.9 d, and the rotation period of the star at Prot = 46.04 d, respectively. No significant power is found at the planetary period.
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