2016
DOI: 10.1051/0004-6361/201528053
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Twisted versus braided magnetic flux ropes in coronal geometry

Abstract: Aims. Sigmoidal structures in the solar corona are commonly associated with magnetic flux ropes whose magnetic field lines are twisted about a mutual axis. Their dynamical evolution is well studied, with sufficient twisting leading to large-scale rotation (writhing) and vertical expansion, possibly leading to ejection. Here, we investigate the behaviour of flux ropes whose field lines have more complex entangled/braided configurations. Our hypothesis is that this internal structure will inhibit the large-scale… Show more

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Cited by 15 publications
(18 citation statements)
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“…To study emergence, we must place a particular form for the magnetic field in the solar interior and apply a perturbation to allow it to emerge. Before presenting the models that we will consider in this study, we now briefly review the technique for creating magnetic flux tubes with arbitrary axial geometry introduced in Prior and Yeates (2016a).…”
Section: Initial Background Atmospherementioning
confidence: 99%
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“…To study emergence, we must place a particular form for the magnetic field in the solar interior and apply a perturbation to allow it to emerge. Before presenting the models that we will consider in this study, we now briefly review the technique for creating magnetic flux tubes with arbitrary axial geometry introduced in Prior and Yeates (2016a).…”
Section: Initial Background Atmospherementioning
confidence: 99%
“…A further embellishment of this process is to select a finite number of curves r i from the original tube T and to create smaller tubular fields surrounding each curve r i . In this way, a pigtail braided field with a sigmoidal axis was created in Prior and Yeates (2016a) (an example is shown later in figure 3). A second approach to increasing the complexity of the field is to define fields which partly overlap, creating a composite field with more complex internal topology.…”
Section: Generating the Magnetic Fieldmentioning
confidence: 99%
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