Fig. A.1
Light curves from AAVSO for Z CMa since 1930s (upper) and from 1999 to 2018 (lower). Only verified observations are included. The visual and V filters are plotted together, since they are similar for the current purpose of examining the timescales of the outbursts. As a comparison, the ASAS V filter is also plotted (red), which is in excellent agreement with the amateur V data.
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