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Fig. A.2.
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Top panel: 1D scan of brightness in V-band near DDO68-V1 on the epoch of May 2010. Bottom panel: Same as in the left-hand panel, but for the epoch of December 2017. Red solid line shows the level of the underlying background, above which the two-Gauss fitting was performed, as shown in the left panel of Fig. A.3.
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