Neoclassical bootstrap current in solar plasma loops
文献类型：期刊论文
| 作者 | Tan, BL; Huang, GL |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 453期号:1页码:321-327 |
| ISSN号 | 0004-6361 |
| 关键词 | Sun : evolution plasmas Sun : magnetic fields |
| 英文摘要 | From the similarities in magnetic configurations and plasma behaviors between tokamaks and solar current-carrying plasma loops, we apply the theory of neoclassical bootstrap current in tokamaks to the solar plasma loops. We present a simplified expression of the bootstrap current in the solar plasma loops and find that there may be a considerable component of the neoclassical bootstrap current in some compact current-carrying solar flare loops; e. g. the fraction of the bootstrap current is up to 44.6% of a flare loop of the event that occurred on Aug. 25, 1999. We suggest that the neoclassical effect changes the current distribution and affects the instability of solar plasma loops. Based on the data analysis of SXT/Yohkoh, HXT/Yohkoh, GOES, and NoRP, we find that the timescale of the neoclassical tearing modes is consistent with the rising time of the impulsive phase during the event, while the timescale of the classical tearing modes is much longer than that of the event, which may provide important evidence of the bootstrap current and help us understand the mechanisms of the eruptive events, such as solar flares, prominence, and CMEs. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | MAGNETIC-FIELDS ; TOKAMAK ; FLARES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238187700035 |
| 公开日期 | 2012-02-07 |
| 源URL | [http://159.226.72.40/handle/332002/3502]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, BL,Huang, GL. Neoclassical bootstrap current in solar plasma loops[J]. ASTRONOMY & ASTROPHYSICS,2006,453(1):321-327. |
| APA | Tan, BL,&Huang, GL.(2006).Neoclassical bootstrap current in solar plasma loops.ASTRONOMY & ASTROPHYSICS,453(1),321-327. |
| MLA | Tan, BL,et al."Neoclassical bootstrap current in solar plasma loops".ASTRONOMY & ASTROPHYSICS 453.1(2006):321-327. |
入库方式： OAI收割
来源：紫金山天文台
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