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Fig. 4.

image

Change in observed polarisation in MAXI J1820+070. Symbols denote weighted-average polarisation before and after MJD 58222 in different filters: B (blue triangles), V (green diamonds), and R (red crosses). Arrows show the direction of the polarisation change. The vector of additional polarisation in the R filter is about 50% longer than that in the V filter.

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