Two Different Cases of Filament Eruptions Driven by Kink Instability
Abstract
In this work we present a comparative analysis of two filament/prominence eruptions (EP) driven by helical kink instability. First EP on 2010 March 30 presented a kink induced confined eruption of a single magnetic flux rope (FR) followed of partial FR reformation, which was associated with coronal mass ejection (CME). The second EP on 2014 May 4 represented kink induced eruptions of two coupled FRs of the same filament that were interacting and splitting during the eruption. The first FR underwent a confined eruption followed of FR reformation while the second FR underwent a successive partial eruption, which was associated with CME. The physical processes in the EPs environments, such as magnetic emergence, cancellation or shearing, reconnection signatures, overlaying magnetic arcades and the activity events accompanying the eruptions were analyzed. This work laid special emphasis on specific conditions, which are crucial for the type of the filament eruptions and their kinematics and evolution.
- Publication:
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Bulgarian Astronomical Journal
- Pub Date:
- February 2019
- Bibcode:
- 2019BlgAJ..30...99D
- Keywords:
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- Sun;
- Solar Prominence Eruptions;
- Coronal Mass Ejections;
- Magnetic Fields;
- Multiwavelenght Observations