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Break up of returning plasma after the 7 June 2011 filament eruption by Rayleigh-Taylor instabilities View all abstracts by submitter

Davina Innes   Submitted: 2012-02-24 09:09

Context. A prominence eruption on 7 June 2011 produced spectacularcurtains of plasma falling through the lower corona. At thesolar surface they created an incredible display of extremeultraviolet brightenings.
Aims. To identify and analyze some of the local instabilities whichproduce structure in the falling plasma.
Methods. The structures were investigated using SDO/AIA 171A and193A images in which the falling plasma appeared dark againstthe bright coronal emission.
Results. Several instances of the Rayleigh-Taylor instability wereinvestigated. In two cases the Alfvén velocity associated withthe dense plasma could be estimated from the separation of theRayleigh-Taylor fingers. A second type of feature, which has theappearance of self-similar branching horns was discussed.

Authors: D.E. Innes, R. H. Cameron, L. Fletcher, B. Inhester, S.K. Solanki
Projects: SDO-AIA

Publication Status: submitted A&A
Last Modified: 2012-02-24 12:12
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