Fig. 5.
Light curves computed for the Hα, He IIλ4686, Hβ, and He Iλ5876 lines (top and middle panels). The bottom panel shows the AAVSO light curves. The black squares represent the phase-averaged data obtained between JD 2457765 and 2457775, and the blue circles show the light curve of these data at the time of our spectroscopic observations.
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