Fig. 1
Wave of 1997 Sep. 24 imaged with the Nobeyama radioheliograph at 02:49:30 UT. Shown are brightness temperature maps. The wave is seen as a bright semicircular front north of the flaring AR. Top left: 17 GHz radioheliogram synthesized with the Koshix algorithm. The sector over which the intensity profiles were measured is outlined in white. Top right: 17 GHz radioheliogram synthesized with the Hanaoka algorithm. Bottom left: 34 GHz radioheliogram (Koshix algorithm). Bottom right: 34 GHz radioheliogram (Hanaoka algorithm).
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