Interaction between a fast rotating sunspot and ephemeral regions as the origin of the major solar event on 2006 December 13
文献类型：期刊论文
| 作者 | Zhang, Jun ; Li, Leping; Song, Qiao
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2007-06-10 |
| 卷号 | 662期号:1页码:L35-L38 |
| 关键词 | Sun : activity Sun : atmospheric motions Sun : flares Sun : magnetic fields |
| 英文摘要 | The major solar event on 2006 December 13 is characterized by the approximately simultaneous occurrence of a heap of hot ejecta, a great two- ribbon flare, and an extended Earth- directed coronal mass ejection. We examine the magnetic field and sunspot evolution in NOAA AR 10930, the source region of the event, while it transited the solar disk center from December 10 to 13. We find that the obvious changes in the active region associated with the event are the development of magnetic shear, the appearance of ephemeral regions, and fast rotation of a smaller sunspot. Around the area of the magnetic neutral line of the active region, interaction between the fast rotating sunspot and the ephemeral regions triggers continual brightening and finally the major flare. This indicates that only after the sunspot rotates up to 200 degrees does the major event take place. The sunspot rotates at least 240 degrees about its center, the largest sunspot rotation angle that has been reported. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247074500009 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7197]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jun,Li, Leping,Song, Qiao. Interaction between a fast rotating sunspot and ephemeral regions as the origin of the major solar event on 2006 December 13[J]. ASTROPHYSICAL JOURNAL,2007,662(1):L35-L38. |
| APA | Zhang, Jun,Li, Leping,&Song, Qiao.(2007).Interaction between a fast rotating sunspot and ephemeral regions as the origin of the major solar event on 2006 December 13.ASTROPHYSICAL JOURNAL,662(1),L35-L38. |
| MLA | Zhang, Jun,et al."Interaction between a fast rotating sunspot and ephemeral regions as the origin of the major solar event on 2006 December 13".ASTROPHYSICAL JOURNAL 662.1(2007):L35-L38. |
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来源：国家天文台
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