FORCED FIELD EXTRAPOLATION OF THE MAGNETIC STRUCTURE OF THE H alpha FIBRILS IN THE SOLAR CHROMOSPHERE
文献类型：期刊论文
| 作者 | Zhu Xiaoshuai ; Wang Huaning; Du Zhanle; He Han
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2016-07-20 |
| 卷号 | 826期号:1 |
| 关键词 | magnetic fields magnetohydrodynamics (MHD) methods: numerical Sun: chromosphere |
| 英文摘要 | We present a careful assessment of forced field extrapolation using the Solar Dynamics Observatory/Helioseismic and Magnetic Imager magnetogram. We use several metrics to check the convergence property. The extrapolated field lines below 3600 km appear to be aligned with most of the Ha fibrils observed by the New Vacuum Solar Telescope. In the region where magnetic energy is far larger than potential energy, the field lines computed by forced field extrapolation are still consistent with the patterns of Ha fibrils while the nonlinear force-free field results show a large misalignment. The horizontal average of the lorentz force ratio shows that the forced region where the force-free assumption fails can reach heights of 1400-1800 km. The non-force-free state of the chromosphere is also confirmed based on recent radiation magnetohydrodynamics simulations. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000381962200051 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5279]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu Xiaoshuai,Wang Huaning,Du Zhanle,et al. FORCED FIELD EXTRAPOLATION OF THE MAGNETIC STRUCTURE OF THE H alpha FIBRILS IN THE SOLAR CHROMOSPHERE[J]. ASTROPHYSICAL JOURNAL,2016,826(1). |
| APA | Zhu Xiaoshuai,Wang Huaning,Du Zhanle,&He Han.(2016).FORCED FIELD EXTRAPOLATION OF THE MAGNETIC STRUCTURE OF THE H alpha FIBRILS IN THE SOLAR CHROMOSPHERE.ASTROPHYSICAL JOURNAL,826(1). |
| MLA | Zhu Xiaoshuai,et al."FORCED FIELD EXTRAPOLATION OF THE MAGNETIC STRUCTURE OF THE H alpha FIBRILS IN THE SOLAR CHROMOSPHERE".ASTROPHYSICAL JOURNAL 826.1(2016). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。