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Fig. 1


Light curves with the new data in the 2012–2013 period. From top to bottom: blue continuum flux, Hβ, and Hα line flux. Observations with different telescopes are denoted with different symbols given in the middle plot. The continuum flux is plotted in units of 10-16 erg cm-2 s-1Å-1, and the line flux in units of 10-14 erg cm-2 s-1. The dashed line in the blue and red continuum light curves mark the contribution of the host galaxy starlight continuum.

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