The spherical magnetic vortex as an element of solar activity

Details The spherical magnetic vortex as an element of solar activity The spherical magnetic vortex as an element of solar activity

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998arep...42..694s&link_type=abstract

Astronomy Reports, Volume 42, Issue 5, September 1998, pp.694-701

Astronomy and Astrophysics

Astronomy

2

Scientific paper

A solution of the magnetohydrostatic problem describing a spherical magnetic vortex with three electric-current components, well known in plasma physics and astrophysics, is analyzed from the point of view of flare energy release. The solution is generalized to the case of a uniform gravitational field. Two sets of intermittent discrete states (force-free and singular) are discussed. Two possible mechanisms that could lead to loss of the system's equilibrium are considered: relatively slow Ohmic dissipation, and external perturbations that rotate one of the inner magnetic tori by 180 degrees, producing neutral current sheets inside the spheroid. The energetic and temporal estimates for the process are in consistent with observations.

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