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Fig. 7


Division of the sunspot into umbral, penumbral, and lightbridge areas. Red and blue contours in both panels encircle umbral and penumbral areas, which are used to compare the magnetic field vector retrieved in the photosphere and upper chromosphere. The area within the black contour in the left panel represents the lightbridge. The left and right panels correspond to the observations recorded on 14 and 16 November 2010, respectively.

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