Rate Coefficients for Dielectronic Recombination of Carbon-like Ca-40(14+)
文献类型：期刊论文
| 作者 | Wen, W. Q.1,2 ; Huang, Z. K.2; Wang, S. X.7; Khan, N.1,2; Wang, H. B.2; Chen, C. Y.4; Zhang, C. Y.4; Preval, S.5; Badnell, N. R.6; Ma, W. L.7
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2020-12-01 |
| 卷号 | 905期号:1页码:8 |
| 关键词 | Atomic spectroscopy Spectroscopy Atomic data benchmarking Atomic physics |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abc1e4 |
| 通讯作者 | Wen, W. Q.(wenweiqiang@impcas.ac.cn) |
| 英文摘要 | Dielectronic recombination (DR) rate coefficients for carbon-like Ca-40(14+) forming nitrogen-like Ca-40(13+) have been measured using the electron-ion merged-beam technique at the heavy-ion storage ring CSRm at the Institute of Modern Physics in Lanzhou, China. The measured DR rate coefficients in the energy range from 0 to 92 eV cover most of the DR resonances associated with 2s(2)2p(2) -> 2s(2)2p(2) and 2s(2)2p(2) -> 2s2p(3) core transitions (Delta N = 0). Theoretical calculations of the DR cross sections were carried out by using two different state-of-the-art atomic theoretical techniques, multiconfiguration Breit-Pauli (MCBP) code AUTOSTRUCTURE and relativistic configuration interaction code FAC, to compare with the experimental rate coefficients. The theoretical calculations agree with the experimental results at collision energy higher than 10 eV. However, significant discrepancies of resonance energies and strengths can be found at collision energy below 8 eV. Temperature-dependent plasma recombination rate coefficients were derived from the measured DR rate coefficients in the energy range from 0.1 to 1000 eV and compared with the recommended atomic data from the literature. The theoretical data of Gu et al. and Zatsarinny et al. are 30% lower than the experimental results at the temperatures of photoionized plasmas, but have a very good agreement at the temperatures of collisionally ionized plasmas. Other previously published theoretical data of Jacobs et al. and Mazzotta et al. by using Burgess formula and LS-coupling calculations significantly underestimate the plasma rate coefficients in the low temperature range. The present results comprise a set of benchmark data suitable for astrophysical modeling. |
| WOS关键词 | ELECTRON-DENSITY DIAGNOSTICS ; X-RAY SPECTROSCOPY ; ATOMIC DATA ; FE-XXII ; IONIZATION EQUILIBRIUM ; IMAGING SPECTROMETER ; EMISSION-LINES ; DATA NEEDS ; CA XV ; SOLAR |
| 资助项目 | National Key R&D Program of China[2017YFA0402300] ; National Natural Science Foundation of China[U1932207] ; National Natural Science Foundation of China[11904371] ; National Natural Science Foundation of China[U1732133] ; National Natural Science Foundation of China[11674066] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB34020000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB21030300] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-SLH006] ; Youth Innovation Promotion Association CAS ; UK APAP Network STFC[ST/R000743/1] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000597098700001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Youth Innovation Promotion Association CAS ; UK APAP Network STFC |
| 源URL | [http://119.78.100.186/handle/113462/138414]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Wen, W. Q. |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.GSI Helmholtzzentrum Schwerionenforsch, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany 4.Fudan Univ, Inst Modern Phys, Shanghai EBIT Lab, Shanghai 200433, Peoples R China 5.Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England 6.Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland 7.Univ Sci & Technol China, Dept Modern Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, W. Q.,Huang, Z. K.,Wang, S. X.,et al. Rate Coefficients for Dielectronic Recombination of Carbon-like Ca-40(14+)[J]. ASTROPHYSICAL JOURNAL,2020,905(1):8. |
| APA | Wen, W. Q..,Huang, Z. K..,Wang, S. X..,Khan, N..,Wang, H. B..,...&Ma, X..(2020).Rate Coefficients for Dielectronic Recombination of Carbon-like Ca-40(14+).ASTROPHYSICAL JOURNAL,905(1),8. |
| MLA | Wen, W. Q.,et al."Rate Coefficients for Dielectronic Recombination of Carbon-like Ca-40(14+)".ASTROPHYSICAL JOURNAL 905.1(2020):8. |
入库方式： OAI收割
来源：近代物理研究所
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