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The Statistical Relationship of Mass Motions Magnetic Fields and Flares in AR 5395

Published online by Cambridge University Press:  12 April 2016

Tang Yuhua ,
Huan Zunxiang ,
Lin Qing  and
Xu Aoao
Tang Yuhua
Affiliation:
Department of Astronomy, Nanjing University, Nanjing 210008, China
Huan Zunxiang
Affiliation:
Department of Astronomy, Nanjing University, Nanjing 210008, China
Lin Qing
Affiliation:
Department of Astronomy, Nanjing University, Nanjing 210008, China
Xu Aoao
Affiliation:
Department of Astronomy, Nanjing University, Nanjing 210008, China

Extract

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AR 5395 was the super-active region in Solar cycle 22. In this active region, there was rapid relative motion of magnetic elements, growth and decay of umbrae, frequent newly emerging magnetic flux and various mass motions.

Data include daily vector magnetograms (Huairou Observing Station, Beijing Observatory, Hα filtergrams and photographs of sunspot group with fine structures (Yunnan Obs. and Purple Mountain Obs.) on March 9 - 15, 1989. In this period 42 flares have been observed by Yunnan and Purple Mountain Obs. (table 1). Observational data showed that all the 42 flares occurred in four segments (marked as A,B,C,D) of U-shaped neutral line in this active region (Fig. 1).

Type
Session 6. Flares and Transients
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 381 - 383
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Wang, H., Tang, F., Zirin, H. and Ai, G. 1991 BBSO. 0323 (submitted to Ap.J.)Google Scholar