Fig. 4

Light curves of the continuum fluxes at 4600 and 5180 Å (in units of 10-15 erg cm-2 s-1 Å-1) and of the integrated emission line fluxes of Hβ and Hα (in units of 10-15 erg cm-2 s-1) for the years 2004 and 2005 and in greater detail for the year 2005 (right column).
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