Fig. 2.
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Long-term photometric light curve (upper panel), including CATALINA measurements (light green shaded region) from Czerny et al. (2019), and total Mg II (middle panel) and Fe II (lower panel) light curves. Photometric observations are in magnitudes (panel 1), but Mg II and Fe II fluxes are in units of 10−16 and 10−17 erg s−1 cm−2. We used only the non-shaded region.
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