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On the Possibility of Local Magnetic Field Intensification in Evaporating Chromospheric Solar Flare Plasma

Published online by Cambridge University Press:  27 September 2017

V. N. Dermendjiev
Affiliation:
Department of Astronomy and NAO, 1784 Sofia, 72 Lenin Blvd., Bulgaria
G. T. Buyukliev
Affiliation:
Department of Astronomy and NAO, 1784 Sofia, 72 Lenin Blvd., Bulgaria
I. Ph. Panayotova
Affiliation:
Department of Astronomy and NAO, 1784 Sofia, 72 Lenin Blvd., Bulgaria

Extract

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The investigations of plasma motions at the initial phases of solar flares (Antonucci and Dennis, 1983; Doschek, 1983; Watanabe, 1987) suggest evaporation from the chromospheric flaring area. According to de Jager (1983) when seen at the limb the evaporated plasma will look like a “convective plume” and it can be seen separated from heated footpoint areas.

The subject of this work is the study of the possibility of forming hydrodynamic structures o-f thermal and starting plume's kind at the time of evaporation of the upper chromosphere in a flaring area. Also the possibility of increasing an initial magnetic field by a periodically moving vortex in a plume structure is investigated.

Type
Session III: Theory
Copyright
Copyright © Kluwer 1989

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