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A Case Of Filament - Active Region Interaction View all abstracts by submitter

Cristiana Dumitrache   Submitted: 2010-12-10 04:43

We analyze a huge filament observed between 5 and 19 September 2001. During its evolution it is linked to the active region 9612, observed between 7 and 16 September 2001. The filament has a strange morphology and dynamics: starting as two parallel components (A and B), it becomes a double sigmoid filament when a third component (C ) appears linking the other two. An unusual magnetic topology characterizes this evolution: the active region is located between the parallel components. When the third component becomes observable, it links these ones first below the active region. After a spectacular plasma movement registered in filament (A), this one becomes linked to (B) above the active region. In spite of these dramatically changes of the magnetic topology and filament { active region switch, no CME is observed. Only a few flares occurring in AR9612 are registered and these ones can be seen in the dynamics of the filament as an expression of large scale magnetic reconnections.

Authors: C.Dumitrache, L.Dumitru
Projects: None

Publication Status: Publication of the Astronomical Observatory of Belgrade, 90, 125-130, 2010
Last Modified: 2010-12-10 10:16
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