The formation and magnetic structures of active-region filaments observed by NVST, SDO, and Hinode

XL Yan, ZK Xue, GM Pan, JC Wang… - The Astrophysical …, 2015 - iopscience.iop.org
To better understand the properties of solar active-region filaments, we present a detailed
study on the formation and magnetic structures of two active-region filaments in active region …

Kink instability evidenced by analyzing the leg rotation of a filament

XL Yan, ZK Xue, JH Liu, L Ma, DF Kong… - The Astrophysical …, 2014 - iopscience.iop.org
Kink instability is a possible mechanism for solar filament eruption. However, it is very
difficult to directly measure the twist of the solar filament from observation. In this paper, we …

[HTML][HTML] Converging photospheric vortex flows close to the polarity inversion line of a fully emerged active region

JC Santos, CM Wrasse - Annales Geophysicae, 2019 - angeo.copernicus.org
We report on the occurrence of vortexes in flow fields obtained from the evolution of the line-
of-sight component of the photospheric magnetic field in a region around the polarity …