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Fig. 5

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Difference images of HE1104-1805 in the R band from mid 2014 in the upper left to mid 2022 in the lower right (second last image). Shown is the flux in each pixel relative to reference image linearly in grey scale (where white means brighter and black darker), while the last image in the lower right shows the flux in the corresponding reference image logarithmically coloured.

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