Advertisement

Bifurcation and Stability of the Coronal Magnetic Field

  • K. Kusano
  • Y. Suzuki
  • K. Moriyama
  • K. Fujie
  • K. Nishikawa

Abstract

It is widely believed that a solar flare is an event in which the free energy accumulated in the coronal magnetic field is catastrophically released. However, current understanding of the question of what triggers flare events is not yet theoretically unified. We investigate the magnetohydrodynamics (MHD) of the solar coronal magnetic field based on the Woltjer-Taylor minimum energy principle (Woltjer, 1958; Taylor, 1974) as well as using the numerical simulations, and propose the new insight that a solar flare is a transition process between bifurcated equilibrium branches.

Keywords

Solar Flare Magnetic Reconnection Magnetic Helicity Coronal Magnetic Field Couple Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Masuda, S., Kosugi, T., Hara, H., Tsuneta, S., and Ogawara, Y. (1994) A Loop-top Hard X-ray Source in a Compact Solar Flare as Evidence for Magnetic Reconnection, Nature 371 pp. 495–497ADSCrossRefGoogle Scholar
  2. Kusano, K., Suzuki, Y., and Nishikawa, K. (1995) A Solar Flare Triggering Mechanism Based on the Woltjer-Taylor Minimum Energy Principle, Astrophys. J. 441 pp. 942–951ADSCrossRefGoogle Scholar
  3. Taylor, J.B. (1974) Relaxation of Toroidal Plasma and Generation of Reversed Magnetic Fields, Phys. Rev. Lett. 33 pp. 1139–1141ADSCrossRefGoogle Scholar
  4. Woltjer, L. (1958) A Theorem on Force-Free Magnetic Fields, Proc. Nat. Acad. Sci. (USA) 44 pp. 489–492MathSciNetADSzbMATHCrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • K. Kusano
    • 1
  • Y. Suzuki
    • 1
  • K. Moriyama
    • 1
  • K. Fujie
    • 1
  • K. Nishikawa
    • 1
  1. 1.Department of Materials ScienceHiroshima UniversityHigashi-HiroshimaJapan

Personalised recommendations