Fig. A.6
Relative fluxes of violet and red peak (upper) and of the central depression of the Hα line. The minimum and maximum value of | EW | of the Hα line and its V/R> 1 are shown by the vertical lines. The curve at two upper graphs is a fit of linear combinations of two sine functions with the fixed periods obtained from the period analysis of the Hα EWs.
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