Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes

Myers, Clayton ; Yamada, Masaaki ; Ji, Hantao ; Yoo, Jongsoo ; Jara-Almonte, Jonathan ; Fox, William
Issue date: 2016
Rights:
Creative Commons Attribution 4.0 International (CC BY)
Cite as:
Myers, Clayton, Yamada, Masaaki, Ji, Hantao, Yoo, Jongsoo, Jara-Almonte, Jonathan, & Fox, William. (2016). Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes [Data set]. Princeton Plasma Physics Laboratory, Princeton University. https://doi.org/10.11578/1366984
@electronic{myers_clayton_2016,
  author      = {Myers, Clayton and
                Yamada, Masaaki and
                Ji, Hantao and
                Yoo, Jongsoo and
                Jara-Almonte, Jonathan and
                Fox, William},
  title       = {{Quasi-static and dynamic magnetic tensio
                n forces in arched, line-tied magnetic f
                lux ropes}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  year        = 2016,
  url         = {https://doi.org/10.11578/1366984}
}
Description:

Solar eruptions are often driven by magnetohydrodynamic instabilities such as the torus and kink instabilities that act on line-tied magnetic flux ropes. Recent laboratory experiments designed to study these eruptive instabilities have demonstrated the key role of both dynamic (Myers et al 2015 Nature 528, 526) and quasi-static (Myers et al 2016 Phys. Plasmas, in press) magnetic tension forces in contributing to the equilibrium and stability of line-tied magnetic flux ropes. In this paper, we synthesize these laboratory results and explore the relationship between the dynamic and quasi-static tension forces. While the quasi-static tension force is found to contribute to the flux rope equilibrium in a number of regimes, the dynamic tension force is substantial mostly in the so-called failed torus regime where magnetic self-organization events prevent the flux rope from erupting.

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