Research on a complex CME event including Halpha, LASCO, radio and MDI observations - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue Advances in Space Research Année : 2005

Research on a complex CME event including Halpha, LASCO, radio and MDI observations

Résumé

We present our research on a fast and decelerating partial halo coronal mass ejection (CME) event detected in multi-wavelengths in the chromosphere and the corona on 14 October, 1999. The event involved a whole complex active area which spanned more than 40° of heliolongitude. It included a strong solar flare (XI/1N) and a complex eruptive filament within an active region of the entire complex. Especially, several radio sources were detected in the decimetric range prior to the CME by the Nançay Radioheliograph (NRH). A linear force-free field extrapolation of the Michelson Doppler Imager (MDI) magnetogram was performed to calculate the magnetic topology of the complex prior to the triggering of the event. The presence of a coronal null point combined with the occurrence of two distant and nearly simultaneous radio sources put strong arguments in favor of the generalized breakout model for the triggering of the eruption. The analysis of the subsequent development of the event suggests that large interconnecting loops were ejected together with the CME.

Dates et versions

hal-03785562 , version 1 (23-09-2022)

Identifiants

Citer

S. J. Wang, Dalmiro Maia, Monique Pick, Guillaume Aulanier, Jean-Marie Malherbe, et al.. Research on a complex CME event including Halpha, LASCO, radio and MDI observations. Advances in Space Research, 2005, 36, pp.2273-2278. ⟨10.1016/j.asr.2005.07.066⟩. ⟨hal-03785562⟩
4 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More