Author ORCID Identifier
James McAteer:
https://orcid.org/0000-0003-1493-101X
Xudong Sun:
https://orcid.org/0000-0003-4043-616X
Chunming Zhu:
https://orcid.org/0000-0003-3218-5487
Document Type
Journal Article
Journal Article Version
Final Version / Publisher's PDF (peer-reviewed)
Publication Date
11-1-2015
Abstract
We report on an eruption involving a relatively rare filament-filament interaction on 2013 June 21, observed by SDO and STEREO-B. The two filaments were separated in height with a “double-decker” configuration. The eruption of the lower filament began simultaneously with a descent of the upper filament, resulting in a convergence and direct interaction of the two filaments. The interaction was accompanied by the heating of surrounding plasma and an apparent crossing of a loop-like structure through the upper filament. The subsequent coalescence of the filaments drove a bright front ahead of the erupting structures. The whole process was associated with a C3.0 flare followed immediately by an M2.9 flare. Shrinking loops and descending dark voids were observed during the M2.9 flare at different locations above a C-shaped flare arcade as part of the energy release, giving us unique insight into the flare dynamics.
Published in
Astrophysical Journal
DOI
10.1088/0004-637X/813/1/60
Keywords
Sun: flares, Sun: magnetic fields, prominences, Sun: filaments
Department / Organizational Unit
Astronomy
Copyright Notice
© 2015 C. Zhu, R. Liu, D. Alexander, et al., reuse allowed according to Creative Commons license.
License for Reuse
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Zhu, C., Liu, R., Alexander, D., Sun, X., & McAteer, R. T. J. (2015). Complex flare dynamics initiated by a filament-filament interaction. Astrophysical Journal, 813(1). https://doi.org/10.1088/0004-637X/813/1/60