Calculations of Dielectronic Recombination and Electron-impact Excitation Rate Coefficients of Highly Charged Sulfur Ions
Calculations of Dielectronic Recombination and Electron-impact Excitation Rate Coefficients of Highly Charged Sulfur Ions
复制标题
高电荷硫离子双电子复合和电子碰撞激发速率系数的计算
DOI：
10.3847/1538-4365/ab6b2c
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Dong C. Z.
中科院分区：
文献类型：
--
作者：
Zhang D. H.;Wu Z. W.;Ren C.;Jiang J.;Xie L. Y.;Schuch R.;Zhang J. M.;Dong C. Z.
Connected to the experiment performed at the Stockholm electron beam ion trap, a systematic relativistic configuration-interaction calculation is carried out to compare with the experimental spectra. In particular, separate rate coefficients are calculated for dominant recombination and excitation processes in the range of the impact electron energy determined by the experiment. By means of the relevant experimental parameters, the presently calculated dielectronic recombination rate coefficients for and S14+ ions and electron-impact excitation ones for S15+, S14+, and S13+ ions are employed further to synthesize overall theoretical spectra for comparison with the experimentally measured spectra. Overall, very good agreements with the experimental results are found except for one missing excitation peak around the impact electron energy 2.52 keV, which cannot be explained by the present calculations and thus remains open.
