On the validity of the ICFT R-matrix method: Fe XIV
文献类型：期刊论文
| 作者 | Del Zanna, G.1; Badnell, N. R.2; Fernandez-Menchero, L.2; Liang, G. Y.3; Mason, H. E.1; Storey, P. J.4 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2015-12-11 |
| 卷号 | 454期号:3页码:2909-2917 |
| 关键词 | atomic data techniques: spectroscopic |
| 英文摘要 | Recently, Aggarwal & Keenan published a Dirac R-matrix (DARC) calculation for the electron-impact excitation of Fe XIV. A 136-level configuration-interaction/close-coupling (CI/CC) expansion was adopted. Comparisons with earlier calculations, obtained by Liang et al. with the intermediate coupling frame transformation (ICFT) R-matrix method, showed significant discrepancies. One of the main differences was that the Liang et al. effective collision strengths were consistently larger. Aggarwal & Keenan suggested various possible causes for the differences. We discuss them in detail here. We have carried out an ICFT R-matrix calculation with the same 136-level CI/CC expansion adopted by Aggarwal & Keenan, and compared the results with theirs and with those of Liang et al., which employed a much larger CI/CC expansion. We find that the main differences arise because of the different CC and CI expansions, and not because of the use of the ICFT method, as suggested by Aggarwal & Keenan. The significant increase in the effective collision strengths obtained by Liang et al. is mainly due to the extra resonances that are present because of the larger target expansion. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000368000400050 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5474]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Univ Cambridge, Ctr Math Sci, DAMTP, Cambridge CB3 0WA, England 2.Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland 3.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 4.UCL, Dept Phys & Astron, London WC1E 6BT, England |
| 推荐引用方式 GB/T 7714 | Del Zanna, G.,Badnell, N. R.,Fernandez-Menchero, L.,et al. On the validity of the ICFT R-matrix method: Fe XIV[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2015,454(3):2909-2917. |
| APA | Del Zanna, G.,Badnell, N. R.,Fernandez-Menchero, L.,Liang, G. Y.,Mason, H. E.,&Storey, P. J..(2015).On the validity of the ICFT R-matrix method: Fe XIV.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,454(3),2909-2917. |
| MLA | Del Zanna, G.,et al."On the validity of the ICFT R-matrix method: Fe XIV".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 454.3(2015):2909-2917. |
入库方式： OAI收割
来源：国家天文台
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