1. A rope-shaped solar filament and a IIIb flare
- Author
-
Hai-sheng Ji, Mu-tao Song, and Yan-an Zhang
- Subjects
Physics ,Solar flare ,Astronomy ,Astronomy and Astrophysics ,Magnetic reconnection ,Astrophysics ,law.invention ,Nanoflares ,L-shell ,Protein filament ,Space and Planetary Science ,law ,Physics::Space Physics ,Astrophysics::Solar and Stellar Astrophysics ,Magnetohydrodynamics ,Interplanetary magnetic field ,Flare - Abstract
On September 14-18, 2000, a medium-small solar active region was observed at Ganyu Station of Purple Mountain Observatory. Its spots were not large, but it had a peculiar active filament. On Sep.16, a flare of importance IIIb with rather intense geophysical effects was produced. Our computation of the magnetic structure of the active region reveals that the rope-shaped filament was concerned with a low magnetic arc close to magnetic neutral line. An intense shear of magnetic field occurred near magnetic rope. The QSL analysis shows that a 3-D magnetic reconnection might appear in the vicinity of filament, and this can be used to interpret the formation of a large flare.
- Published
- 2002