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Fig. 1.


Sunspot of NOAA 12146 observed with the LARS context imager on August 24 2014 at 8:41 UTC in the spectral G-band at 4307 Å. The black arrow is pointing in the direction of the solar disk center. The spectroscopically analyzed 3″-wide region (highlighted by the red circle) was centered on the darkest part of the umbra at X = 361″ and Y = 36″. For more information see Obs. 8 in Table 1.

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