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Fig. 1


Leading sunspot in NOAA AR 11271. Top panels, clockwise from top left: G-band intensity, LOS velocity, field inclination in the local reference frame, and field strength. The MERLIN maps correspond to the last SP scan acquired from 10:05–10:21 UT. Blue and red colours in the LOS velocity map correspond to blue- and redshifts, respectively. The arrow in the top left panel points to disk centre. Bottom panel: arrows corresponding to the horizontal magnetic field overlaid on the LOS velocity map. The FOV under study is marked by the dashed rectangle in the top panels.

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