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Laboratory demonstration of slow rise to fast acceleration of arched magnetic flux ropes

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1002/2016GL069744· OSTI ID:1469332
 [1];  [2]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Dept. of Applied Physics and Material Science; Department of Applied Physics and Material Science, California Institute of Technology, Pasadena, California
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Dept. of Applied Physics and Material Science
+ Show Author Affiliations
In this paper, we demonstrate the slow rise to fast acceleration of an arched plasma-filled magnetic flux rope. The flux rope expansion is inhibited by an externally applied customizable strapping field. When the strapping field is not too strong and not too weak, expansion forces build up while the flux rope is in the strapping field region. When the flux rope moves to a critical height beyond the peak strapping field region, the plasma accelerates quickly corresponding to the observed slow rise to fast acceleration of solar eruptions. Finally, this behavior is in agreement with the predictions of the torus instability.
Research Organization:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
Air Force Office of Scientific Research (AFOSR) (United States); National Science Foundation (NSF) (United States); USDOE Office of Science (SC); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
FG02-04ER54755; SC0010471
OSTI ID:
1469332
Alternate ID(s):
OSTI ID: 1574933
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 18 Vol. 43; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

Magnetically Induced Current Piston for Generating Extreme-ultraviolet Fronts in the Solar Corona journal April 2019
Reverse Current Model for Coronal Mass Ejection Cavity Formation journal July 2018
Magnetic Rayleigh–Taylor Instability in an Experiment Simulating a Solar Loop journal January 2020

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
coronal mass ejection
flux rope
laboratory
plasma