Yuandeng Shen, Yu Liu, Jiangtao Su, Yuanyong Deng
The coronal blowout jet is a peculiar category among various jet phenomena,
of 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 a simultaneous bubble-like
and a 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 was 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 plasmas 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 was 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, of 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.
View original:
http://arxiv.org/abs/1110.5243
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