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首页> 外文期刊>The Astrophysical journal >Atomic Data for High-Energy Configurations in Fe XVII-XXIII
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Atomic Data for High-Energy Configurations in Fe XVII-XXIII

机译:Fe XVII-XXIII中高能构型的原子数据

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In the present work we calculate energy levels, oscillator strengths, A-values, and electron-ion excitation collision strengths for high-energy configurations for the iron ions Fe XVII to Fe XXIII. Collision rate coefficients are calculated using the distorted-wave approximation; the contribution of resonant excitation is taken into account by using the isolated-resonance approximation for configurations with principal quantum numbers n = 2 and 3. Results are compared with R-matrix calculations available in the literature for the lowest configurations; our results are the first ever published for highly excited configurations with n ≥ 4 for most ions. Synthetic spectra are calculated from the resulting rate coefficients and compared to available spectral codes. Some applications of the results of the present calculation to solar physics are discussed. These data will be part of the next version of the CHIANTI database.
机译:在本工作中,我们计算铁离子Fe XVII到Fe XXIII的高能构型的能级,振荡器强度,A值和电子离子激发碰撞强度。碰撞率系数是使用失真波近似来计算的;对于具有主量子数n = 2和3的构型,使用孤立共振近似法考虑了共振激发的贡献。我们的结果是大多数离子的n≥4的高激发态组态的首次公开发表。根据所得的速率系数计算合成频谱,并将其与可用频谱代码进行比较。讨论了本计算结果在太阳物理学中的一些应用。这些数据将成为下一版CHIANTI数据库的一部分。

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