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

Abstract

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.

Authors:
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  1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Publication Date:
DOE Contract Number:  
AC02-09CH11466
Product Type:
Dataset
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Laboratory Astrophysics Solar Eruptions Magnetohydrodynamic Equilibrium Magnetohydrodynamic Instabilities
Keywords:
Laboratory Astrophysics Solar Eruptions Magnetohydrodynamic Equilibrium Magnetohydrodynamic Instabilities
OSTI Identifier:
1366984
DOI:
10.11578/1366984

Citation Formats

Myers, Clayton, Yamada, Masaaki, Ji, Hantao, Yoo, Jongsoo, Jara-Almonte, Jonathan, and Fox, William. Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes. United States: N. p., 2016. Web. doi:10.11578/1366984.
Myers, Clayton, Yamada, Masaaki, Ji, Hantao, Yoo, Jongsoo, Jara-Almonte, Jonathan, & Fox, William. Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes. United States. doi:10.11578/1366984.
Myers, Clayton, Yamada, Masaaki, Ji, Hantao, Yoo, Jongsoo, Jara-Almonte, Jonathan, and Fox, William. 2016. "Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes". United States. doi:10.11578/1366984. https://www.osti.gov/servlets/purl/1366984. Pub date:Thu Dec 01 00:00:00 EST 2016
@article{osti_1366984,
title = {Quasi-static and dynamic magnetic tension forces in arched, line-tied magnetic flux ropes},
author = {Myers, Clayton and Yamada, Masaaki and Ji, Hantao and Yoo, Jongsoo and Jara-Almonte, Jonathan and Fox, William},
abstractNote = {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.},
doi = {10.11578/1366984},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {12}
}

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