The Birth of a Jet-driven Twin CME and Its Deflection from Remote Magnetic Fields. (arXiv:1907.07310v1 [astro-ph.SR])
<a href="http://arxiv.org/find/astro-ph/1/au:+Duan_Y/0/1/0/all/0/1">Yadan Duan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Shen_Y/0/1/0/all/0/1">Yuandeng Shen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chen_H/0/1/0/all/0/1">Hechao Chen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Liang_H/0/1/0/all/0/1">Hongfei Liang</a>
We report the formation of a complicated coronal mass ejection (CME) on 2015
August 23 by using the high temporal and high spatial resolution
multi-wavelength observations taken by the Solar Dynamic Observatory and the
Solar and Heliospheric Observatory. The CME exhibited both jet-like and
bubble-like components simultaneously, and therefore we call it a twin CME.
Detailed imaging and kinematic analysis results indicate that the twin CME were
evolved form the eruption of a mini-filament driven blowout jet at the east
edge of an equatorial coronal hole, in which the activation of the
mini-filament was tightly associated with the continuous flux cancellation and
quasi-periodic jet-like activities in the filament channel. Due to the magnetic
reconnection between the filament and the ambient open field lines, the
filament broke partially at the northern part and resulted in an intriguing
blowout jet in the south direction. It is interesting that the ejecting jet was
deflected by a group of remote open field lines, which resulted in the
significant direction change of the jet from southward to eastward. Based on
the close temporal and spatial relationships among the jet, filament eruption,
and the twin CME, we conclude that the jet-like CME should be the coronal
extension of the jet plasma, while the bubble-like one should be originated
from the eruption of the mini-filament confined by the closed magnetic fields
at the jet-base.
We report the formation of a complicated coronal mass ejection (CME) on 2015
August 23 by using the high temporal and high spatial resolution
multi-wavelength observations taken by the Solar Dynamic Observatory and the
Solar and Heliospheric Observatory. The CME exhibited both jet-like and
bubble-like components simultaneously, and therefore we call it a twin CME.
Detailed imaging and kinematic analysis results indicate that the twin CME were
evolved form the eruption of a mini-filament driven blowout jet at the east
edge of an equatorial coronal hole, in which the activation of the
mini-filament was tightly associated with the continuous flux cancellation and
quasi-periodic jet-like activities in the filament channel. Due to the magnetic
reconnection between the filament and the ambient open field lines, the
filament broke partially at the northern part and resulted in an intriguing
blowout jet in the south direction. It is interesting that the ejecting jet was
deflected by a group of remote open field lines, which resulted in the
significant direction change of the jet from southward to eastward. Based on
the close temporal and spatial relationships among the jet, filament eruption,
and the twin CME, we conclude that the jet-like CME should be the coronal
extension of the jet plasma, while the bubble-like one should be originated
from the eruption of the mini-filament confined by the closed magnetic fields
at the jet-base.
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