Fig. B.3.
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Emission in the Hα and the He I 6678 line profiles of HD 205637 observed in the ESPaDOnS and HARPSpol Stokes I spectra. Top left: All five ESPaDOnS Hα profiles overplotted with the one observed in the HARPSpol spectrum. Top right: Only the first and last ESPaDOnS Hα profiles are overplotted, showing no changes over 0.8 h. Bottom: Same but for the He I 6678 line profile.
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