Fig. 3

RVi time series of the shallow Cr I line at 5038.90 Å, from 2008 to 2012, phase-folded with the period of a year. This stellar line is contaminated by the 5038.85 Å telluric line, which has a depth ratio of 5%. A peak-to-peak RV variation of 600 m s−1 is observed when the spectral line moves through the telluric line over the year.
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