Energy levels and transition rates for helium-like ions with Z=10-36
文献类型：期刊论文
| 作者 | Si, R.1,2,3; Guo, X. L.2,3; Wang, K.4; Li, S.5; Yan, J.5,6,7; Chen, C. Y.2,3; Brage, T.1; Zou, Y. M.2,3 |
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 592页码:10 |
| 关键词 | atomic data atomic processes |
| ISSN号 | 1432-0746 |
| DOI | 10.1051/0004-6361/201628656 |
| 英文摘要 | Aims. Helium-like ions provide an important X-ray spectral diagnostics in astrophysical and high-temperature fusion plasmas. An interpretation of the observed spectra provides information on temperature, density, and chemical compositions of the plasma. Such an analysis requires information for a wide range of atomic parameters, including energy levels and transition rates. Our aim is to provide a set of accurate energy levels and transition rates for helium-like ions with Z = 10-36. Methods. The second-order many-body perturbation theory (MBPT) was adopted in this paper. To support our MBPT results, we performed an independent calculation using the multiconfiguration Dirac-Hartree-Fock (MCDHF) method. Results. We provide accurate energies for the lowest singly excited 70 levels among 1snl (n <= 6; l <= (n 1)) configurations and the lowest doubly excited 250 levels arising from the K-vacancy 2ln' l' (n' <= 6; l' <= (n' 1)) configurations of helium-like ions with Z = 10 36. Wavelengths, transition rates, oscillator strengths, and line strengths are calculated for the E1, M1, E2, and M2 transitions among these levels. The radiative lifetimes are reported for all the calculated levels. Conclusions. Our MBPT results for singly excited n <= 2 levels show excellent agreement with other elaborate calculations, while those for singly excited n >= 3 and doubly excited levels show significant improvements over previous theoretical results. Our results will be very helpful for astrophysical line identification and plasma diagnostics. |
| WOS关键词 | X-RAY-EMISSION ; DIELECTRONIC SATELLITE SPECTRA ; PERTURBATION-THEORY APPROACH ; ELECTRON-IMPACT EXCITATION ; CONFIGURATION-INTERACTION CALCULATIONS ; LYING RESONANCE STATES ; MANY-BODY CALCULATIONS ; SOLAR-FLARE SPECTRA ; HYDROGEN-LIKE IRON ; L-SHELL IONS |
| 资助项目 | NSAF[11076009] ; National Natural Science Foundation of China[11374062] ; Chinese Association of Atomic and Molecular Data ; Swedish Research Council[2015-04842] ; Chinese National Fusion Project for ITER[2015GB117000] ; Shanghai Leading Academic Discipline Project[B107] ; International Exchange Program Fund for Doctorate Students of Fudan University Graduate School |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000384722600145 |
| 出版者 | EDP SCIENCES S A |
| 资助机构 | NSAF ; National Natural Science Foundation of China ; Chinese Association of Atomic and Molecular Data ; Swedish Research Council ; Chinese National Fusion Project for ITER ; Shanghai Leading Academic Discipline Project ; International Exchange Program Fund for Doctorate Students of Fudan University Graduate School |
| 源URL | [http://119.78.100.186/handle/113462/43528]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Brage, T. |
| 作者单位 | 1.Lund Univ, Dept Phys, Div Math Phys, Box 118, S-22100 Lund, Sweden 2.Fudan Univ, Inst Modern Phys, Dept Nucl Sci & Technol, Shanghai EBIT Lab, Shanghai 200433, Peoples R China 3.Fudan Univ, Appl Ion Beam Phys Lab, Key Lab Minist Educ, Shanghai 200433, Peoples R China 4.Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China 5.Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China 6.Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China 7.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Si, R.,Guo, X. L.,Wang, K.,et al. Energy levels and transition rates for helium-like ions with Z=10-36[J]. ASTRONOMY & ASTROPHYSICS,2016,592:10. |
| APA | Si, R..,Guo, X. L..,Wang, K..,Li, S..,Yan, J..,...&Zou, Y. M..(2016).Energy levels and transition rates for helium-like ions with Z=10-36.ASTRONOMY & ASTROPHYSICS,592,10. |
| MLA | Si, R.,et al."Energy levels and transition rates for helium-like ions with Z=10-36".ASTRONOMY & ASTROPHYSICS 592(2016):10. |
入库方式： OAI收割
来源：近代物理研究所
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