Photospheric vortex flows as a cause for two-ribbon flares - A topological model

Details Photospheric vortex flows as a cause for two-ribbon flares - A topological model Photospheric vortex flows as a cause for two-ribbon flares - A topological model

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988soph..117...77g&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 117, no. 1, 1988, p. 77-88.

Physics

88

Photosphere, Plasma Dynamics, Solar Flares, Solar Magnetic Field, Vortices, Potential Fields, Stellar Models, Topology

Scientific paper

By using a topological model for the potential magnetic field above the photosphere, the appearance and development of the separator as a result of vortex plasma flows in the locality of the photospheric neutral line are considered. The possible relation of such vortex flows with a flare activity is revealed. The arrangement and shape of the flare ribbons in the chromosphere, the formation of X-ray intersecting loops, and the early appearance of bright 'knots' on flare ribbon edges are naturally explained by the model provided a reconnecting current sheet arises along the separator in the coronal magnetic field of active regions as a result of the evolution of the magnetic field sources in the photosphere.

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