| Features and properties of coronal mass ejection/flare current sheets | |
Lin J(林隽)1,2 ; Li, J3; Forbes, TG4; Ko, YK2; Raymond, JC2; Vourlidas, A5; Lin, J (reprint author), Chinese Acad Sci, Natl Astron Observ, China Yunnan Astron Observ, Kunming 650011, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2007-04-01 | |
| 卷号 | 658期号:2页码:L123-L126 |
| DOI | 10.1086/515568 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Diffusion Sun : Flares Sun : Magnetic Fields Turbulence |
| 摘要 | Solar eruptions occur when magnetic energy is suddenly converted into heat and kinetic energy by magnetic reconnection in a current sheet ( CS). It is often assumed that CSs are too thin to be observable because the electric resistivity n(e) in CSs is taken to be very small. In this work, we show the implications for the CS thickness d estimated from observations of three eruptions by the UVCS and the LASCO experiments on SOHO. We infer the effective n(e) causing the rapid reconnection, which predicts much faster reconnection in a thick CS than that caused by the classical and anomalous resistivities. We find that in these events CSs are observable and have extremely large values of d and n(e), implying that large-scale turbulence is operating within CSs. We also discuss the properties of the so-called hyperresistivity caused by the tearing mode and the relation to our results. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| 归档日期 | 2007-03-28 |
| WOS记录号 | WOS:000245406000014 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | MAGNETIC RECONNECTION ; SOLAR ERUPTIONS ; ACTIVE-REGION ; ACCELERATION ; SIMULATION ; SPECTRA ; FLARES ; LINES |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6107 |
| 专题 | 太阳物理研究组 |
| 通讯作者 | Lin, J (reprint author), Chinese Acad Sci, Natl Astron Observ, China Yunnan Astron Observ, Kunming 650011, Peoples R China. |
| 作者单位 | 1.National Astronomical Observatory of China/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 3.Institute for Astronomy, University of Hawaii, Honolulu, HI 96822 4.Institute for the Study of Earth, Ocean, and Space, University of New Hampshire, Durham, NH 03824 5.Naval Research Laboratory, Washington, DC 20375 |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Lin J,Li, J,Forbes, TG,et al. Features and properties of coronal mass ejection/flare current sheets[J]. ASTROPHYSICAL JOURNAL,2007,658(2):L123-L126. |
| APA | Lin J.,Li, J.,Forbes, TG.,Ko, YK.,Raymond, JC.,...&Lin, J .(2007).Features and properties of coronal mass ejection/flare current sheets.ASTROPHYSICAL JOURNAL,658(2),L123-L126. |
| MLA | Lin J,et al."Features and properties of coronal mass ejection/flare current sheets".ASTROPHYSICAL JOURNAL 658.2(2007):L123-L126. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Features and Propert（76KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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