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

Innes, D.E., Cameron, R.H., Fletcher, L. , Inhester, B. and Solanki, S.K. (2012) Break up of returning plasma after the 7 June 2011 filament eruption by Rayleigh-Taylor instabilities. Astronomy and Astrophysics, 540, L10. (doi:10.1051/0004-6361/201118530)

Innes, D.E., Cameron, R.H., Fletcher, L. , Inhester, B. and Solanki, S.K. (2012) Break up of returning plasma after the 7 June 2011 filament eruption by Rayleigh-Taylor instabilities. Astronomy and Astrophysics, 540, L10. (doi:10.1051/0004-6361/201118530)

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Abstract

Context. A prominence eruption on 7 June 2011 produced spectacular curtains of plasma falling through the lower corona. At the solar surface they created an incredible display of extreme ultraviolet brightenings.<p></p> Aims. To identify and analyze some of the local instabilities which produce structure in the falling plasma.<p></p> Methods. The structures were investigated using SDO/AIA 171 Å and 193 Å images in which the falling plasma appeared dark against the bright coronal emission.<p></p> Results. Several instances of the Rayleigh-Taylor instability were investigated. In two cases the Alfvén velocity associated with the dense plasma could be estimated from the separation of the Rayleigh-Taylor fingers. A second type of feature, which has the appearance of self-similar branching horns was discussed.<p></p>

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fletcher, Professor Lyndsay
Authors: Innes, D.E., Cameron, R.H., Fletcher, L., Inhester, B., and Solanki, S.K.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astronomy and Astrophysics
Publisher:EDP Sciences
ISSN:0004-6361
ISSN (Online):1432-0746

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