Upper two panels: close-ups of two umbral regions of the spot in Fig. 7. Tick mark units in arcsec. In the upper left panel the contrast is strongly enhanced and intensity clipped to display the faint light bridge. The two lower plots show intensity cuts from the upper left cross to the lower right cross in each image, respectively. The intensity along the cut is normalised to the averaged quiet-Sun intensity. The interpolated pixels have a distance of 0.03 arcsec. The red bar in the lower left plot marks the width of the dark lane of the faint light bridge.
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