Three super active regions in the descending phase of solar cycle 23

被引：28

作者：

Zhang, HQ ^{[1
]}

Bao, XM ^{[1
]}

Zhang, Y ^{[1
]}

Liu, JH ^{[1
]}

Bao, SD ^{[1
]}

Deng, YY ^{[1
]}

Li, W ^{[1
]}

Chen, J ^{[1
]}

Dun, JP ^{[1
]}

Su, JT ^{[1
]}

Guo, J ^{[1
]}

Wang, XF ^{[1
]}

Hu, KL ^{[1
]}

Lin, GH ^{[1
]}

Wang, DG ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China

来源：

CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS | 2003年 / 3卷 / 06期

关键词：

Sun : activity; Sun : flares; Sun : magnetic fields;

D O I：

10.1088/1009-9271/3/6/491

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the magnetic configurations of three super active regions, NOAA 10484, 10486 and 10488, observed by the Huairou Multi-Channel Solar Telescope (MCST) from 2003 October 18 to November 4. Many energetic phenomena, such as flares (including a X-28 flare) and coronal mass ejections (CMEs), occurred during this period. We think that strong shear and fast emergence of magnetic flux are the main causes of these events. The question is also of great interest why these dramatic eruptions occurred so close together in the descending phase of the solar cycle.

引用

页码：491 / 494

页数：4

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