Solar large-scale emitting chains: some CME-associated events

Abstract

Transient large-scale emitting chains and threads, associated with several coronal mass ejections (CMEs), are analyzed by the SOHO//EIT, TRACE, Yohkoh//SXT, Nobeyama Radioheliograph, and some other imaging data. It is illustrated that a pronounced evolution of the chains and threads in the EUV, soft X-ray, microwave, and other ranges can occur many hours both before and after a CME on a considerable part of the solar visible disk, especially near the place of a CME eruption. Such relations between chains and CMEs seem to be plausible due to both phenomena being the consequences of the evolution of large-scale magnetic fields and have often a global character.