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On the propagation of brightening after filament/prominence eruptions, as seen by SoHO-EIT View all abstracts by submitter

Durgesh Tripathi   Submitted: 2006-04-04 13:37

We studied the relationship between the propagation of brightening and erupting filaments/prominences in order to get some insight into the three-dimensional picture of magnetic reconnection based on observations taken by SoHO/EIT. We found that when the prominences/filaments erupted having one point fixed - asymmetric eruption - the brightening propagated along the neutral line together with the expansion/separation from the polarity inversion line (PIL) as expected from the standard models. However in case of symmetric eruptions, the brightening propagated towards both end points starting at the middle. When the prominence/filament erupted faster then the speed of the propagating brightening was faster and vice-versa. Based on these observations we conclude that the eruption and magnetic reconnection - propagation (along the PIL) and separation (away from PIL) of the brightening - are dynamically coupled phenomena. These observations can be explained by a simple extension of the 2D models illustrating eruption and magnetic reconnection to a 3D model.

Authors: D. Tripathi, H. Isobe, H. E. Mason
Projects: SoHO-EIT

Publication Status: Accepted for publication in Astronoy and Astrophysics
Last Modified: 2006-04-10 15:51
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