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On a Coronal Blowout Jet: The First Observation of a Simultaneously Produced Bubble-like CME and a Jet-like CME in a Solar Event View all abstracts by submitter

Yuandeng Shen   Submitted: 2012-05-01 20:06

The coronal blowout jet is a peculiar category among various jet phenomena, in which the sheared base arch, often carrying a small filament, experiences a miniature version of blowout eruption that produces large-scale coronal mass ejection (CME). In this paper, we report such a coronal blowout jet with high-resolution multi-wavelength and multi-angle observations taken from Solar Dynamics Observatory, Solar Terrestrial Relations Observatory, and Big Bear Solar Observatory. For the first time, we find that simultaneous bubble-like and jet-like CMEs were dynamically related to the blowout jet that showed cool and hot components next to each other. Our observational results indicate that (1) the cool component resulted from the eruption of the filament contained within the jet's base arch, and it further caused the bubble-like CME; (2) the jet-like CME was associated with the hot component, which was the outward moving heated plasma generated by the reconnection of the base arch and its ambient open field lines. On the other hand, bifurcation of the jet's cool component was also observed, which resulted from the uncoupling of the erupting filament's two legs that were highly twisted at the very beginning. Based on these results, we propose a model to interpret the coronal blowout jet, in which the external reconnection not only produces the jet-like CME, but also leads to the rising of the filament. Subsequently, internal reconnection starts underneath the rising filament and thereby causes the bubble-like CME.

Authors: Yuandeng Shen, Yu Liu, Jiangtao Su, and Yuanyong Deng
Projects: SDO-AIA

Publication Status: It has been published by ApJ (2012, ApJ, 745, 164).
Last Modified: 2012-05-02 11:15
Go to main E-Print page  Active Region Moss: Doppler Shifts from Hinode/EIS Observations  Sympathetic Partial and Full Filament Eruptions Observed in One Solar Breakout Event  Edit Entry  Download Preprint  Delete Entry 

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