Fig. 1
Left panel: full-disk microwave polarisation image of the Sun at 17 GHz on May 03, 2005, at 02:45 UT. The rectangle shows the radio source associated with the sunspot. Right panel: zoomed image of the radio source shown in the left panel; the dashed contours show the L-polarisation image overlapping with the SOHO/MDI magnetogram taken at 01:35 UT. The grey scale indicates the polarity of the magnetic field.
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