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Pulsation of dark filaments as mechanism of homologous flares

Authors
Journal
Chinese Astronomy and Astrophysics
0275-1062
Publisher
Elsevier
Publication Date
Volume
9
Issue
4
Identifiers
DOI: 10.1016/0275-1062(85)90017-7

Abstract

Abstract We have analysed the Hα morphology of the series of homologous flares of 1982 July 12 and found a close connection between the morphological changes in a dark filament and the repeated eruption of the flares, namely, pulsation of dark filaments modulates the repeated eruptions. We believe that newly emerging flux of a pulsating type in the vicinity of dark filaments can give rise to dynamic pinches of the filament plasma, causing the repeated flare eruptions. Our theoretical calculation agrees well with the observed results.

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