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

Myers, C. E.; Yamada, M.; Ji, H.; Yoo, J.; Jara-Almonte, J.; Fox, W.

doi:10.1088/0741-3335/59/1/014048

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

Journal Article · Tue Nov 22 00:00:00 EST 2016 · Plasma Physics and Controlled Fusion

DOI:https://doi.org/10.1088/0741-3335/59/1/014048· OSTI ID:1338611

Myers, C. E. ^[1]; Yamada, M. ^[1]; Ji, H. ^[2]; Yoo, J. ^[1]; Jara-Almonte, J. ^[3]; Fox, W. ^[1]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences; Harbin Inst. of Technology (China). Lab. for Space Environment and Physical Sciences
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences

Solar eruptions are often driven by magnetohydrodynamic instabilities such as the torus and kink instabilities that act on line-tied magnetic flux ropes. We designed our recent laboratory experiments to study these eruptive instabilities which have demonstrated the key role of both dynamic (Myers et al 2015 Nature 528 526) and quasi-static (Myers et al 2016 Phys. Plasmas 23 112102) magnetic tension forces in contributing to the equilibrium and stability of line-tied magnetic flux ropes. In our paper, we synthesize these laboratory results and explore the relationship between the dynamic and quasi-static tension forces. And 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.

View Accepted Manuscript (DOE)

Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1338611

Alternate ID(s):: OSTI ID: 1333234
OSTI ID: 22717549

Journal Information:: Plasma Physics and Controlled Fusion, Journal Name: Plasma Physics and Controlled Fusion Journal Issue: 1 Vol. 59; ISSN 0741-3335

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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