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Fig. 27


Wide-band diffuse IP type II burst on 10 September 2005 (event No. 23, top-left panel) observed by the Wind WAVES RAD1 and RAD2 instruments. The LASCO C3 coronagraph image (top-right panel, the small white circle in the center of the image indicates the position of the Sun) shows the CME front at 22:37 UT at height 12.8 R, at which time the calculated type II burst height was 12.1 R  (calculated with the hybrid density model, center of the emission lane). This is a rare event where the emission lane is formed above 14 MHz and the lane is fully visible despite the simultaneous strong type III burst activity. GOES plot (bottom panel) shows the flare evolution in soft X-rays. In the same plot the CME and type II heights are indicated with boxes and circles, respectively, with scale shown on the right (heliocentric distance, in solar radii). No SEP injection was identified because of the high particle background.

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