Fig. 1
Example spectra of Gl586A and Gl586B for the wavelength region around Balmer Hα. The top two spectra are the A components shortly before (phase φ = 0.971) and after (phase φ = 0.023) periastron. The wavelength position of the weak Ab component is indicated with dash marks for Fe i 6546 and for Hα . The bottom spectrum in gray scale is the visual Gl586B component.
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