A novel topological approach to the problem of solar flare trigger

Details A novel topological approach to the problem of solar flare trigger A novel topological approach to the problem of solar flare trigger

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988azh....65..601g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 65, May-June 1988, p. 601-612. In Russian.

Mathematics

Logic

11

Solar Activity, Solar Flares, Solar Magnetic Field, Magnetohydrodynamics, Plasma Dynamics, Separators, Solar Corona, Sunspots

Scientific paper

The analysis of the structure of a solar magnetic field formed by two coplanar but non-collinear bipolar spot pairs is presented. The analysis of topological peculiarities of magnetic fields shows that a three-dimensional generalization of the line of X-type neutral points, namely separator, can appear and vanish with the evolution of sunspots arrangement. A three-dimensional magnetic field neutral line can exist even if the sunspots do not lie on a straight line. An isolated neutral point of the magnetic field can appear on the separator above the plane of location of sunspots, and a small change of sunspots arrangement causes a great displacement of the neutral point along the separator.

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