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Fig. 2.
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Variability of 2016 Balmer lines of EX Lup. Top row: Hα(left), Hβ(middle), and Hγ(right) residual lines profiles. Each colour represents a different observation. Bottom row: 2D periodograms of the Hα(left), Hβ(middle), and Hγ(right) residual lines. The dotted white line marks the rotation period of 7.417 d.
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