A SUMMARY OF THE ACTIVITIES ON THE SUN AROUND 260° LONGITUDES AND THEIR RADIO CHARACTERISTICS IN THE YEAR OF 1991

ZHENG Leping; LIU Yuying

doi:10.11728/cjss1998.02.097

Volume 18 Issue 2

Apr. 1998

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ZHENG Leping, LIU Yuying. A SUMMARY OF THE ACTIVITIES ON THE SUN AROUND 260° LONGITUDES AND THEIR RADIO CHARACTERISTICS IN THE YEAR OF 1991[J]. Chinese Journal of Space Science, 1998, 18(2): 97-103. doi: 10.11728/cjss1998.02.097

Citation:

ZHENG Leping, LIU Yuying. A SUMMARY OF THE ACTIVITIES ON THE SUN AROUND 260° LONGITUDES AND THEIR RADIO CHARACTERISTICS IN THE YEAR OF 1991[J]. Chinese Journal of Space Science, 1998, 18(2): 97-103. doi: 10.11728/cjss1998.02.097

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A SUMMARY OF THE ACTIVITIES ON THE SUN AROUND 260° LONGITUDES AND THEIR RADIO CHARACTERISTICS IN THE YEAR OF 1991

doi: 10.11728/cjss1998.02.097 cstr: 32142.14.cjss1998.02.097

Beijing Observatory, The Chinese Academy of Sciences, 100101

Received Date: 1994-07-20
Rev Recd Date: 1997-12-28
Publish Date: 1998-04-24

Abstract

Abstract

In the paper, a summary of activities on the Sun around 260° longitudes is presented and the drifts of sunspot groups and parameters of their corresponding slowly varying sources are calculated. Eight great radio bursts were observed with the 2.84GHz radio telescope at Beijing Observatory, among them, four events (1991-05-16,1991-06-09, 1991-06-11, 1991-08-25)are very similar in temporal variations. All of these bursts are well correlated with type Ⅱ, type Ⅲ, type Ⅳ radio meter band bursts.It indicates that in these active regions there are certain magnetic configurations which might be easy to produce mass coronal mass ejection.
- Solar active region,
- Solar flare,
- Radio burst