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The Birth of a Jet-driven Twin CME and Its Deflection from Remote Magnetic Fields View all abstracts by submitter

Yadan Duan   Submitted: 2019-08-16 19:51

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.

Authors: Yadan Duan; Yuandeng Shen; Hechao Chen; Hongfei Liang
Projects: SDO-AIA

Publication Status: Accepted for publication in the ApJ
Last Modified: 2019-08-19 12:30
Go to main E-Print page  Modelling Mg II During Solar Flares, I: Partial Frequency Redistribution, Opacity, and Coronal Irradiation  On the Origin of Solar Torsional Oscillations and Extended Solar Cycle  Edit Entry  Download Preprint  Delete Entry 

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