CME on CME Interaction on January 17, 2005

TL;DR

This study analyzes a complex solar radio event on January 17, 2005, associated with a significant flare and two fast halo CMEs, using multi-instrument observations to understand shock wave and electron beam interactions.

Contribution

It provides a comprehensive multi-instrument analysis of CME-CME interactions and their radio signatures during a specific solar event.

Findings

Radio emissions linked to shock waves and electron beams were observed from the low corona to 1 A.U.

The event involved complex interactions between two fast halo CMEs and associated shock phenomena.

Multi-instrument data revealed detailed dynamics of CME interactions and related radio emissions.

Abstract

On January 17, 2005 a complex radio event associated with an X3.8 SXR flare and two fast Halo CMEs (CME1 & CME2 henceforward) in close succession was observed. We present combined ARTEMIS-IV & WIND WAVES dynamic spectra which provide a complete view of the radio emission induced by shock waves and electron beams from the low corona to about 1 A.U. These are supplemented with data, from the Nan\c{c}ay Radioheliograph (NRH), GOES, EIT and LASCO for the study of the associated flare and CME activity.