Energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI
Energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI
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H 类 N VII、O VIII、F IX、Ne X 和 Na XI 跃迁的能级、辐射速率和电子碰撞激发速率
DOI：
10.1088/0031-8949/82/01/015006
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发表时间：
2010
期刊：
影响因子：
2.9
通讯作者：
Aggarwal K
中科院分区：
文献类型：
--
作者：
Aggarwal K
我们报道了类h态nvii、oviii、fix、nex和Na XI跃迁的能级、辐射率和电子冲击激发率的计算。用通用相对论原子结构包（grasp）计算能级和辐射率，用狄拉克原子r矩阵码（darc）和柔性原子码（fac）确定碰撞强度和激发率。列出了上述5个离子的最低25个能级中E1、E2、M1和M2所有跃迁的振子强度、辐射率和线强度。碰撞强度已在麦克斯韦速度分布上平均，并且在低于10.7 K的宽温度范围内得到了有效碰撞强度。此外，还给出了上述五种离子的所有计算能级的寿命。
We report calculations of energy levels, radiative rates and electron impact excitation rates for transitions in H-like N VII, O VIII, F IX, Ne X and Na XI. The general-purpose relativistic atomic structure package (grasp) is adopted for calculating energy levels and radiative rates, while the Dirac atomic R-matrix code (darc) and the flexible atomic code (fac) are used for determining the collision strengths and subsequently the excitation rates. Oscillator strengths, radiative rates and line strengths are listed for all E1, E2, M1 and M2 transitions among the lowest 25 levels of the above five ions. Collision strengths have been averaged over a Maxwellian velocity distribution, and the effective collision strengths so obtained are reported over a wide temperature range below 10 7 K. Additionally, lifetimes are also given for all the calculated energy levels of the above five ions.