Solar flares with and without SOHO/LASCO coronal mass ejections and type II shocks

TL;DR

This study investigates the characteristics of radio-rich solar flares and their association with CMEs and type II shocks, revealing that flares with both CMEs and type IIs are more impulsive and energetic.

Contribution

It provides a comparative analysis of solar flares with different radio burst associations and their relation to CMEs and shocks, highlighting differences in impulsiveness and energetics.

Findings

Flares with both CMEs and type IIs are more impulsive and energetic.

Flares with type IIs but no CMEs are shorter and more impulsive.

Flares with type IIs without CMEs are the shortest in duration.

Abstract

We analyse of a set of radio rich (accompanied by type IV or II bursts) solar flares and their association with SOHO/LASCO Coronal Mass Ejections in the period 1998 2000. The intensity, impulsiveness and energetics of these events are investigated. We find that, on the average, flares associated both with type IIs and CMEs are more impulsive and more energetic than flares associated with type IIs only (without CME reported), as well as flares accompanied by type IV continua but not type II shocks. From the last two classes, flares with type II bursts (without CMEs reported) are the shortest in duration and the most impulsive.