On magnetic reconnection and flux rope topology in solar flux emergence

D. MacTaggart, A. L. Haynes

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    We present an analysis of the formation of atmospheric flux ropes in a magnetohydrodynamic solar flux emergence simulation. The simulation domain ranges from the top of the solar interior to the low corona. A twisted magnetic flux tube emerges from the solar interior and into the atmosphere where it interacts with the ambient magnetic field. By studying the connectivity of the evolving magnetic field, we are able to better understand the process of flux rope formation in the solar atmosphere. In the simulation, two flux ropes are produced as a result of flux emergence. Each has a different evolution resulting in different topological structures. These are determined by plasma flows and magnetic reconnection. As the flux rope is the basic structure of the coronal mass ejection, we discuss the implications of our findings for solar eruptions.
    Original languageEnglish
    Pages (from-to)1500-1506
    Number of pages7
    JournalMonthly Notices of the Royal Astronomical Society
    Issue number2
    Early online date19 Dec 2013
    Publication statusPublished - 21 Feb 2014


    • MHD
    • Sun: magnetic topology
    • Magnetic fields
    • Magnetic reconnection
    • Sun: coronal mass ejections (CMEs)


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