Fig. A.2.
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Light curves of the sources in the field of LkCa 4: J041556+281645 (pink), J041732+281048 (blue), J041640+280521 (green), and J041607+281833 (black). We note that the fluxes of J041640+280521 are offset by +0.1 h for readability. The error bars are given by the fitting error σfit given by PyBDSF and the root-mean-square noise σrms added in quadrature: 
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