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Title: Filament activity in a quiet region flare
Authors: Sundararaman, K
Gupta, S. S
Selvendran, R
Keywords: Solar flares;Solar prominences;Coronal loops;H alpha line;Sunspots
Issue Date: Mar-1993
Publisher: Indian Academy of Sciences
Citation: Journal of Astrophysics and Astronomy, Vol. 14, No. 1, pp. 45 - 52.
Abstract: We have taken the case of a circular H-alpha filament observed on May 9, 1979 erupting into a double-ribbon flare associated with a nonspot region. The plage motions are responsible for the filament reorientation and, here as a special case, wherein the filament attains a clear circular shape before the onset of a flare. We conclude that the change in the orientation of the H-alpha filament marks the instability giving rise to the flare.
ISSN: 0250-6335
Appears in Collections:IIAP Publications

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