Electron-impact excitation of forbidden and allowed transitions in Cr II
Electron-impact excitation of forbidden and allowed transitions in Cr II
复制标题
Cr II 中禁止和允许跃迁的电子碰撞激发
DOI：
10.1088/1742-6596/1412/14/142006
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Zatsarinny, O
中科院分区：
文献类型：
--
作者：
Tayal, S S;Zatsarinny, O
Extensive calculations are reported for electron collision strengths, rate coefficients, and transitions probabilities for a wide range of transitions in Feii. The collision strengths were calculated in the close-coupling approximation using theB-spline Breit-PauliR-matrix method. The multiconfiguration Hartree-Fock method in connection with adjustable configuration expansions and a semiempirical fine-tuning procedure is employed for an accurate representation of the target wave functions. The energy correction was also used in the scattering calculations by adding to Hamiltonian matrices prior to transformation to intermediate coupling. The spin-orbit interaction term was added to the final Hamiltonian matrices in scattering calculations. The close-coupling expansion contains 340 fine-structure levels of Feiiand includes all levels of the,,, andconfigurations, plus a few lowest levels of theconfiguration. The effective collision strengths are obtained by averaging the electron collision strengths over a Maxwellian distribution of velocities at electron temperatures in the range fromtoK and are reported for all possible inelastic transitions between the 340 fine-structure levels. The present results are more extensive than the previous calculations and considerably expand the existing data sets for Feii, allowing a more detailed treatment of the available measured spectra from different space observatories. Comparison with other calculations for collision rates and available experimental radiative rates is used to place uncertainty bounds on our collision strengths and to assess the likely uncertainties in the existing data sets.
DOI：
10.1016/j.cpc.2005.10.006
发表时间：
2006-02
期刊：
Comput. Phys. Commun.
影响因子：
--
作者：
O. Zatsarinny
通讯作者：
O. Zatsarinny
Cr II 的电子碰撞激发禁戒跃迁碰撞和有效碰撞强度的理论计算
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
I. R. Wasson;C. Ramsbottom;P. Norrington
通讯作者：
P. Norrington
Cr ii 的电子碰撞激发：光学允许跃迁有效碰撞强度的理论计算
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
I. R. Wasson;C. Ramsbottom;M. Scott
通讯作者：
M. Scott