Fig. 1
Hα activity index of HD 103485 measured from TNG/HARPS-N spectra (top panel) and from HET/HRS ones (lower panel). Solid lines present linear fits to the data. Although Hα activity index measured from HET/HRS does not present correlation with HET/HRS radial velocities, the one measured from TNG/HARPS-N spectra shows clear correlation with TNG/HARPS-N radial velocities.
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