Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...431..870s&link_type=abstract
The Astrophysical Journal, vol. 431, no. 2, pt. 1, p. 870-872
Astronomy and Astrophysics
Astrophysics
7
Asymptotes, Force-Free Magnetic Fields, Magnetohydrodynamics, Stellar Mass Ejection, Cosmology, Solar Flares, Symmetry
Scientific paper
It is known from computer calculations that if a force-free magnetic field configuration is stressed progressively by footpoint displacements, the configuration expands and approaches the open configuration with the same surface flux distribution and the energy of the field increases progressively. For configurations of translational symmetry, it has been found empirically that the energy tends asymptotically to a certain functional form. It is here shown that analysis of a simple model of the asymptotic form of force-free fields of translational symmetry leads to and therefore justifies this functional form. According to this model, the field evolves in a well-behaved manner with no indication of instability or loss of equilibrium.
Antiochos Spiro K.
Klimchuk James A.
Roumeliotis George
Sturrock Peter Andrew
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