A SOLAR ERUPTION DRIVEN BY RAPID SUNSPOT ROTATION
文献类型：期刊论文
| 作者 | Ruan, Guiping1,2,3,4; Chen, Yao1,2; Wang, Shuo4; Zhang, Hongqi3 ; Li, Gang5,6; Jing, Ju4; Su, Jiangtao3; Li, Xing7; Xu, Haiqing3; Du, Guohui1,2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-04-01 |
| 卷号 | 784期号:2 |
| 关键词 | Sun: coronal mass ejections (CMEs) Sun: filaments prominences Sun: flares Sun: photosphere |
| 英文摘要 | We present the observation of a major solar eruption that is associated with fast sunspot rotation. The event includes a sigmoidal filament eruption, a coronal mass ejection, and a GOES X2.1 flare from NOAA active region 11283. The filament and some overlying arcades were partially rooted in a sunspot. The sunspot rotated at similar to 10. hr(-1) during a period of 6 hr prior to the eruption. In this period, the filament was found to rise gradually along with the sunspot rotation. Based on the Helioseismic and Magnetic Imager observation, for an area along the polarity inversion line underneath the filament, we found gradual pre-eruption decreases of both the mean strength of the photospheric horizontal field (B-h) and the mean inclination angle between the vector magnetic field and the local radial (or vertical) direction. These observations are consistent with the pre-eruption gradual rising of the filament-associated magnetic structure. In addition, according to the nonlinear force-free field reconstruction of the coronal magnetic field, a pre-eruption magnetic flux rope structure is found to be in alignment with the filament, and a considerable amount of magnetic energy was transported to the corona during the period of sunspot rotation. Our study provides evidence that in this event sunspot rotation plays an important role in twisting, energizing, and destabilizing the coronal filament-flux rope system, and led to the eruption. We also propose that the pre-event evolution of Bh may be used to discern the driving mechanism of eruptions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000335519400080 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6429]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China 2.Shandong Univ, Sch Space Sci & Phys, Weihai 264209, Peoples R China 3.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 4.NJIT, Ctr Solar Terr Res, Space Weather Res Lab, Newark, NJ 07102 USA 5.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA 6.Univ Alabama, CSPAR, Huntsville, AL 35899 USA 7.Aberystwyth Univ, Inst Math & Phys, Aberystwyth SY23 3BZ, Dyfed, Wales |
| 推荐引用方式 GB/T 7714 | Ruan, Guiping,Chen, Yao,Wang, Shuo,et al. A SOLAR ERUPTION DRIVEN BY RAPID SUNSPOT ROTATION[J]. ASTROPHYSICAL JOURNAL,2014,784(2). |
| APA | Ruan, Guiping.,Chen, Yao.,Wang, Shuo.,Zhang, Hongqi.,Li, Gang.,...&Wang, Haimin.(2014).A SOLAR ERUPTION DRIVEN BY RAPID SUNSPOT ROTATION.ASTROPHYSICAL JOURNAL,784(2). |
| MLA | Ruan, Guiping,et al."A SOLAR ERUPTION DRIVEN BY RAPID SUNSPOT ROTATION".ASTROPHYSICAL JOURNAL 784.2(2014). |
入库方式： OAI收割
来源：国家天文台
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