1. A rope-shaped solar filament and a IIIb flare
- Author
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Yan-an, Zhang, Mu-tao, Song, and Hai-sheng, Ji
- Subjects
- *
SOLAR active regions , *SOLAR flares , *GEOPHYSICS - 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. [Copyright &y& Elsevier]
- Published
- 2002
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