DIRECT EVIDENCE FOR A FAST CORONAL MASS EJECTION DRIVEN BY THE PRIOR FORMATION AND SUBSEQUENT DESTABILIZATION OF A MAGNETIC FLUX ROPE
By S. Patsourakos, A. Vourlidas, Guillermo Stenborg. 2012
162 citations recorded by the source corpus.
Magnetic flux ropes play a central role in the physics of coronal mass ejections (CMEs). Although a flux-rope topology is inferred for the majority of coronagraphic observations of CMEs, a heated debate rages on whether the flux ropes pre-exist or whether they are formed on-the-fly during the eruption. Here, we present a detailed analysis of extreme-ultraviolet observations of the formation of a flux rope during a confined flare followed about 7 hr later by the ejection of the flux rope and an eruptive flare. The two flares occurred during 2012 July 18 and 19. The second event unleashed a fast (>1000 km s−1) CME. We present the first direct evidence of a fast CME driven by the prior formation and destabilization of a coronal magnetic flux rope formed during the confined flare on July 18.
Subfields: Astronomy and Astrophysics, Molecular Biology
View Paper: https://www.semanticscholar.org/paper/27fc14a256f0f9d78f2dcd20f7f2683670344851
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In Astronomy and Astrophysics
- G. Aulanier
- Etienne Pariat
- Brigitte Schmieder
- P. Démoulin
- M. Janvier
- V. Bommier
- Wei Liu
- V. Petrosian
In Molecular Biology
- Etienne Pariat
- P. Démoulin
- Brigitte Schmieder
- G. Aulanier
- M. Janvier
- V. Petrosian
- Wei Liu
- Qingrong Chen
Citations in the corpus
- ELECTRIC CURRENTS IN FLARE RIBBONS: OBSERVATIONS AND THREE-DIMENSIONAL STANDARD MODEL (2014, background): “Eruptive flares have several observational characteristics, including the flare loops (e.g., Schmieder et al. 1995) and twisted magnetic field lines, identified as the flux rope at the origin of CMEs (e.g., Cheng et al. 2011; Zhang et al. 2012; Patsourakos et al. 2013).”
- PLASMOID EJECTIONS AND LOOP CONTRACTIONS IN AN ERUPTIVE M7.7 SOLAR FLARE: EVIDENCE OF PARTICLE ACCELERATION AND HEATING IN MAGNETIC RECONNECTION OUTFLOWS (2013, background): “The flux rope in this two-stage eruption was reported by Patsourakos et al. (2013).”