02 May 1998 Halo CME associated with on-disk electromagnetic disturbances

Complex radio event which includes type III and type II bursts and various continua.

Artemis IV radio spectrum: the type II burst includes successive spectral drifting components M1, M2 and M3

Panel a: A LASCO/SOHO image showing the halo CME. Panel d: Running difference of Kanzelhohe H? images showing the moving H? wave front (marked by an arrow in the first difference image).
Panel c: The radio type II-like burst sources seen by the NRH (labelled M1, M2, and M3 are located near the wave fronts.
Panel b: EUV dimming region shown in an EIT/SOHO image. A 236 MHz image is over plotted in contours. At the time of the EIT image, this ascending moving radio source had already left.

(Pohjolainen et al., The Astrophysical Journal, Volume, 556, Issue 1, pp. 421-431, 2001)

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