EXTREME-ULTRAVIOLET SPECTROSCOPY OF Fe VI-Fe XV AND ITS DIAGNOSTIC APPLICATION FOR ELECTRON BEAM ION TRAP PLASMAS
文献类型：期刊论文
| 作者 | Liang, G. Y.1,3; Baumann, T. M.1; Lopez-Urrutia, J. R. Crespo1; Epp, S. W.1; Tawara, H.1; Gonchar, A.1; Mokler, P. H.1; Zhao, G.2 ; Ullrich, J.1
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2009-05-10 |
| 卷号 | 696期号:2页码:2275-2289 |
| 关键词 | line: identification methods: analytical methods: laboratory |
| 英文摘要 | Extreme-ultraviolet spectra of intermediately ionized iron ions (Fe VI-Fe XIV) in the wavelength range of 125.0-265.0 angstrom have been measured at the Heidelberg electron beam ion trap. Emission spectra were recorded sequentially while varying the electron energy over the range of 75-544 eV in steps of 5 eV. The observed spectra clearly show the evolution of each ionic stage as a function of the electron energy, allowing to distinguish the emission lines from neighboring ion charge species and helping to disentangle possible line blends. The collisional-radiative modeling satisfactorily reproduces the measurement. A comparison with previous astrophysical observations (Sun) reveals that some weak emissions may originate from Fe VI and Fe VII, resulting in incorrect assignment of transition lines. The calculated polarization effects due to nonthermal (monoenergetic) electrons are found to be negligible for most of the emission lines at low-energy electron impact, except for a few lines whose polarization can be over 20%. By line ratio technique, the effective electron density in the trap was estimated to be 7.1(-3.0)(+2.4) x 10(9)-3.4(0.5)(+0.5) x 10(10) cm(-3), slightly depending on the ion charge state. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000265762700104 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7612]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Max Planck Inst Kernphys, D-69117 Heidelberg, Germany 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland |
| 推荐引用方式 GB/T 7714 | Liang, G. Y.,Baumann, T. M.,Lopez-Urrutia, J. R. Crespo,et al. EXTREME-ULTRAVIOLET SPECTROSCOPY OF Fe VI-Fe XV AND ITS DIAGNOSTIC APPLICATION FOR ELECTRON BEAM ION TRAP PLASMAS[J]. ASTROPHYSICAL JOURNAL,2009,696(2):2275-2289. |
| APA | Liang, G. Y..,Baumann, T. M..,Lopez-Urrutia, J. R. Crespo.,Epp, S. W..,Tawara, H..,...&Ullrich, J..(2009).EXTREME-ULTRAVIOLET SPECTROSCOPY OF Fe VI-Fe XV AND ITS DIAGNOSTIC APPLICATION FOR ELECTRON BEAM ION TRAP PLASMAS.ASTROPHYSICAL JOURNAL,696(2),2275-2289. |
| MLA | Liang, G. Y.,et al."EXTREME-ULTRAVIOLET SPECTROSCOPY OF Fe VI-Fe XV AND ITS DIAGNOSTIC APPLICATION FOR ELECTRON BEAM ION TRAP PLASMAS".ASTROPHYSICAL JOURNAL 696.2(2009):2275-2289. |
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。