Circular-ribbon flares and the related activities

Q Zhang - Reviews of Modern Plasma Physics, 2024 - Springer
Solar flares are an impulsive increase of emissions as a result of impetuous release of
magnetic free energy. This paper will present the recent progress on circular-ribbon flares …

Dependence of coronal mass ejections on the morphology and toroidal flux of their source magnetic flux ropes

JH Guo, L Linan, S Poedts, Y Guo, B Schmieder… - Astronomy & …, 2024 - aanda.org
Context. Coronal mass ejections (CMEs) stand as intense eruptions of magnetized plasma
from the Sun, and they play a pivotal role in driving significant changes of the heliospheric …

Prediction of Large Solar Flares Based on SHARP and High-energy-density Magnetic Field Parameters

X Li, X Li, Y Zheng, T Li, P Yan, H Ye… - The Astrophysical …, 2024 - iopscience.iop.org
The existing flare prediction primarily relies on photospheric magnetic field parameters from
the entire active region (AR), such as Space-Weather HMI Activity Region Patches (SHARP) …

Dynamic Evolution of Magnetic Flux Ropes in Active Region 11429. II. Magnetic Characteristic of the Footpoints During the Preeruption and Eruption Phases

Y Zhang, J Huang, J Liu, S Yang… - The Astrophysical …, 2025 - iopscience.iop.org
Magnetic flux rope (MFRs) are the most probable core structure of coronal mass ejections
(CMEs). Their footpoints on the photosphere are the only feature for which their magnetic …

Nonparametric Statistics on Magnetic Properties at the Footpoints of Erupting Magnetic Flux Ropes

R Liu, W Wang - The Astrophysical Journal, 2024 - iopscience.iop.org
It is under debate whether the magnetic field in the solar atmosphere carries neutralized
electric currents, in particular, whether a magnetic flux rope (MFR), which is considered the …

The temporal evolution of non-neutralized electric currents and the complexity of solar active regions

I Kontogiannis, MK Georgoulis - arxiv preprint arxiv:2406.00520, 2024 - arxiv.org
We study the evolution of electric currents during the emergence of magnetic flux in the solar
photosphere and the differences exhibited between solar active regions of different Hale …