Structure, stability, and evolution of magnetic flux ropes from the perspective of magnetic twist

R Liu, B Kliem, VS Titov, J Chen, Y Wang… - The Astrophysical …, 2016 - iopscience.iop.org
We investigate the evolution of NOAA Active Region (AR) 11817 during 2013 August 10–12,
when it developed a complex field configuration and produced four confined, followed by …

Magnetic flux ropes in the solar corona: structure and evolution toward eruption

R Liu - Research in Astronomy and Astrophysics, 2020 - iopscience.iop.org
Magnetic flux ropes are characterized by coherently twisted magnetic field lines, which are
ubiquitous in magnetized plasmas. As the core structure of various eruptive phenomena in …

Ideal MHD instabilities for coronal mass ejections: interacting current channels and particle acceleration

R Keppens, Y Guo, K Makwana, Z Mei… - Reviews of Modern …, 2019 - Springer
We review and discuss insights on ideal magnetohydrodynamic (MHD) instabilities that can
play a role in destabilizing solar coronal flux rope structures. For single flux ropes, failed or …

Partial eruption, confinement, and twist buildup and release of a double-decker filament

J Chen, Y Su, R Liu, B Kliem, Q Zhang… - The Astrophysical …, 2021 - iopscience.iop.org
We investigate the failed partial eruption of a filament system in NOAA AR 12104 on 2014
July 5, using multiwavelength EUV, magnetogram, and Hα observations, as well as …

Unambiguous evidence of filament splitting-induced partial eruptions

X Cheng, B Kliem, MD Ding - The Astrophysical Journal, 2018 - iopscience.iop.org
Coronal mass ejections are often considered to result from the full eruption of a magnetic
flux rope (MFR). However, it is recognized that, in some events, the MFR may release only …

Transition from eruptive to confined flares in the same active region

FP Zuccarello, R Chandra, B Schmieder… - Astronomy & …, 2017 - aanda.org
Context. Solar flares are sudden and violent releases of magnetic energy in the solar
atmosphere that can be divided into two classes: eruptive flares, where plasma is ejected …

Complex flare dynamics initiated by a filament–filament interaction

C Zhu, R Liu, D Alexander, X Sun… - The Astrophysical …, 2015 - iopscience.iop.org
We report on an eruption involving a relatively rare filament–filament interaction on 2013
June 21, observed by SDO and STEREO-B. The two filaments were separated in height with …

Formation and eruption of a double-decker filament triggered by micro-bursts and recurrent jets in the filament channel

Z Tian, Y Shen, Y Liu - New Astronomy, 2018 - Elsevier
We present the observations of a double-decker filament to study its formation, triggering,
and eruption physics. It is observed that the double-decker filament was formed by splitting …

Observation of a large-scale filament eruption initiated by two small-scale erupting filaments pushing out from below

Y Song, J Su, Q Zhang, M Zhang, Y Deng, X Bai, S Liu… - Solar Physics, 2024 - Springer
Filament eruptions often result in flares and coronal mass ejections (CMEs). Most studies
attribute the filament eruptions to their instabilities or magnetic reconnection. In this study …

A circular-ribbon solar flare following an asymmetric filament eruption

C Liu, N Deng, R Liu, J Lee, É Pariat… - The Astrophysical …, 2015 - iopscience.iop.org
The dynamic properties of flare ribbons and the often associated filament eruptions can
provide crucial information on the flaring coronal magnetic field. This Letter analyzes the …