Fig. 18.
Top: brightness map derived from the variation of the LSD Stokes I profiles. The color code is 1 for the photospheric temperature, increases for hot spots, and decreases for cold ones. Bottom: the large-scale total, radial, longitudinal, and latitudinal surface magnetic field components, as derived from the variations of the LSD Stokes V profiles. The color code indicates the strength of the surface magnetic field in Gauss.
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