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A statistical study on solar soft X-ray flare and the sources

Published online by Cambridge University Press:  18 July 2013

Juan Guo
Juan Guo*
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Science email: [email protected]
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Abstract

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We surveyed 28 year of Solar X-ray flares and sunspot group records supplied by the National Geophysical Data Center (NGDC) to study the dependence of different class Xray flares on the magnetic structure of sunspot groups statistically. It is found that 82.5% X-class flare, 51.4% M-class flare, 26.3% C-class flare, and 10.1% B-class flare occurred in the sunspot group with βγδ structure. There are 6.6% X-class flares, 17.5% M-class flare, 39.1% C-class flare, and 60.4% B-class flare occurred out of sunspot group.

Keywords

flaresmagnetic fields
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S294: Solar and Astrophysical Dynamos and Magnetic Activity , August 2012 , pp. 551 - 552
Copyright
Copyright © International Astronomical Union 2013 

References

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