Fig. 1

Spatial distribution of the radio emission intensity (R+L) in the 17 GHz band obtained with the Nobeyama Radioheliograph for an X3.2-class solar flare on 14 May, 2013 at 01:06 UT. The darker colours indicate the regions of enhanced emission intensity. White dashed contours show the levels 0.9, 0.7, 0.59, 0.5, 0.3, 0.1, and 0.02 of maximal brightness.
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