Journal ArticleDOI
A Model for Solar Coronal Mass Ejections
TLDR
In this article, a magnetic breakout model for the initiation of a solar coronal mass ejection (CME) was proposed, where reconnection between a sheared arcade and neighboring flux systems triggers the eruption.Abstract:
We propose a new model for the initiation of a solar coronal mass ejection (CME). The model agrees with two properties of CMEs and eruptive flares that have proved to be very difficult to explain with previous models: (1) very low-lying magnetic field lines, down to the photospheric neutral line, can open toward infinity during an eruption; and (2) the eruption is driven solely by magnetic free energy stored in a closed, sheared arcade. Consequently, the magnetic energy of the closed state is well above that of the posteruption open state. The key new feature of our model is that CMEs occur in multipolar topologies in which reconnection between a sheared arcade and neighboring flux systems triggers the eruption. In this "magnetic breakout" model, reconnection removes the unsheared field above the low-lying, sheared core flux near the neutral line, thereby allowing this core flux to burst open. We present numerical simulations that demonstrate our model can account for the energy requirements for CMEs. We discuss the implication of the model for CME/flare prediction.read more
Citations
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Journal ArticleDOI
Sympathetic Partial and Full Filament Eruptions Observed in One Solar Breakout Event
Yuandeng Shen,Yu Liu,Jiangtao Su +2 more
TL;DR: In this paper, the authors report two sympathetic solar eruptions including a partial and a full flux rope eruption in a quadrupolar magnetic region where a large and a small filament resided above the middle and the east neutral lines, respectively.
Journal ArticleDOI
Computer Vision for the Solar Dynamics Observatory (SDO)
Petrus C. Martens,Petrus C. Martens,G. D. R. Attrill,A. R. Davey,A. Engell,S. Farid,P. C. Grigis,Justin C. Kasper,Kelly E. Korreck,Steven H. Saar,Antonia Savcheva,Antonia Savcheva,Yingna Su,Paola Testa,M. J. Wills-Davey,Pietro N. Bernasconi,N.-E. Raouafi,Véronique Delouille,Jean-François Hochedez,Jonathan Cirtain,Craig DeForest,Rafal A. Angryk,I. De Moortel,Thomas Wiegelmann,Manolis K. Georgoulis,R. T. J. McAteer,R. T. J. McAteer,R. Timmons +27 more
TL;DR: In this article, a feature recognition system for the Solar Dynamics Observatory (SDO) is presented, which can detect, trace, and analyze numerous phenomena, including flares, sigmoids, filaments, coronal dimmings, polarity inversion lines, sunspots, X-ray bright points, active regions, CORonal holes, EIT waves, and coronal mass ejections (CMEs), coronal oscillations).
Journal ArticleDOI
Slipping magnetic reconnection during an X-class solar flare observed by SDO/AIA
Jaroslav Dudík,Miho Janvier,Guillaume Aulanier,Giulio Del Zanna,Marian Karlický,Helen E. Mason,Brigitte Schmieder +6 more
TL;DR: In this paper, the authors present SDO/AIA observations of an eruptive X-class flare of July 12, 2012, and compare its evolution with the predictions of a 3D numerical simulation.
Journal ArticleDOI
Eruption of a Multiple-Turn Helical Magnetic Flux Tube in a Large Flare: Evidence for External and Internal Reconnection that Fits the Breakout Model of Solar Magnetic Eruptions
G. Allen Gary,Ronald L. Moore +1 more
TL;DR: In this paper, the authors present an interpretation of a unique multiple-turn spiral flux tube eruption from AR10030 on 2002 July 15, which is interpreted in the context of the breakout model for magnetic field explosions.
Journal ArticleDOI
Characterizing and predicting the magnetic environment leading to solar eruptions
Tahar Amari,A. Canou,J. J. Aly +2 more
TL;DR: Modelling demonstrates that twisted flux ropes lead to the ejection, in support of the first model, which drives a mass ejection in coronal mass ejections.
References
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Journal ArticleDOI
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TL;DR: In this paper, the authors outline a different paradigm of cause and effect that removes solar flares from their central position in the chain of events leading from the Sun to near-Earth space.
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Journal ArticleDOI
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