GLS periodograms of the ELODIE time series and window function. Left panels: time series of the ELODIE RVs, activity indicators described in Sect. 2.2, and window function of the observations. Centre panels: GLS periodogram of the time series and the window function. The red circle indicates the maximum power frequencies. The green dotted vertical lines highlight the ≃6.1-day orbital period of HD 118203 b. The magenta dotted vertical lines indicate the ≃110-day periodicity found in the ELODIE FWHMs. The horizontal dotted lines correspond to the 10 (orange), 1 (blue), and 0.1 % (green) FAP levels. Right panels: ELODIE time series and window function folded to the maximum power periods.