Solar Eruptive Events with Interplanetary Radio Signatures

Nat Gopalswamy

Abstract

The Wind/WAVES experiment has opened up a new radio window in the frequency range 1-14 MHz which is unique in bridging the coronal and interplanetary consequences of solar eruptive events. A larger number of radio events have been detected since the launch of the Wind spacecraft in 1994 leading to new insights into the propagation characteristics of coronal mass ejections (CMEs) associated with radio events. Three types of radio bursts are typically observed in the new decameter-hectometric (DH) radio window, caused byshocks (type II bursts), electron beams (type III bursts) and plasmoids (type IV) bursts. In this paper, we report onthe new insights we have gained on the solar eruptive events causing the DH radio signatures and their interplanetary consequences. We also discuss the interaction of CMEs with the solar wind and attempt to quantify this interaction as an effective acceleration of CMEs.

N. Gopalswamy, M. L. Kaiser and A. lara
 

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