Effects of the Driving Mechanism in MHD Simulations of Coronal Mass Ejections

  1. C. T. Russell,
  2. E. R. Priest and
  3. L. C. Lee
  1. J. A. Linker1,
  2. G.Van Hoven1 and
  3. D. D. Schnack2

Published Online: 21 MAR 2013

DOI: 10.1029/GM058p0379

Physics of Magnetic Flux Ropes

Physics of Magnetic Flux Ropes

How to Cite

Linker, J. A., Hoven, G.Van. and Schnack, D. D. (1990) Effects of the Driving Mechanism in MHD Simulations of Coronal Mass Ejections, in Physics of Magnetic Flux Ropes (eds C. T. Russell, E. R. Priest and L. C. Lee), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM058p0379

Author Information

  1. 1

    Department of Physics, University of California, Irvine

  2. 2

    Science Applications International Corporation

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1990

ISBN Information

Print ISBN: 9780875900261

Online ISBN: 9781118663868

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Keywords:

  • Solar photosphere;
  • Magnetic flux;
  • Astrophysics

Summary

We present results of time-dependent MHD simulatio1J.s of mass ejections in the solar corona. Previous authors have shown that results from simulations using a thermal driving mechanism are consistent with the observations only if an elaborate model of the initial corona is used. Our first simulation effort, using a simple model of a plasmoid as the driving mechanism and a simple model of the initial corona, produces results that are also consistent with many observational features, suggesting that the nature of the driving mechanism plays an important role in determining the subsequent evolution of mass ejections. Our first simulations are based on the assumption that mass ejections are driven by magnetic forces; we are now developing simulations where the initial corona is perturbed magnetically by introducing a “plasmoid-like” current perturbation. The preliminary results from these simulations show some features that are consistent with the observations, others that are not. The discrepancies may be caused by the lack of internal force balance in the initial plasmoid structure. In the future, we plan to perform simulations where plasmoid formation occurs self-consistently.