标题： 斯特ark效应在详细不透明度代码SCO-RCG中的建模 显示英文标题

标题： Stark effect modeling in the detailed opacity code SCO-RCG

摘要： 斯塔克效应引起的谱线展宽是推断等离子体中电子密度和温度的重要工具。 斯塔克效应计算通常依赖于原子数据（跃迁速率、能级等），这些数据并不总是全面的和/或适用于孤立原子。 我们介绍了用于K壳层光谱学（氢-like和氦-like离子）的详细不透明度代码SCO-RCG的最新发展。 这种方法改编自Gilles和Peyrusse的工作。 忽略偶极子和碰撞算符中的非对角项，谱线轮廓表示为与斯塔克成分相关的Voigt函数之和。 该形式主义基于在SO(4)对称性内使用抛物坐标。 通过对具有相同主量子数$n$的量子态相关哈密顿矩阵进行对角化，包括了莱曼线的相对论精细结构。 该代码使人们能够研究等离子体环境的影响、微场分布的影响、电子和离子温度之间的解耦以及卫星线（如Li-like$1sn\ell n'\ell' - 1s^2n\ell$、Be-like等）的作用。 还展示了与更简单且广泛使用的半经验模型的比较。 显示英文摘要

摘要： The broadening of lines by Stark effect is an important tool for inferring electron density and temperature in plasmas. Stark-effect calculations often rely on atomic data (transition rates, energy levels,...) not always exhaustive and/or valid for isolated atoms. We present a recent development in the detailed opacity code SCO-RCG for K-shell spectroscopy (hydrogen- and helium-like ions). This approach is adapted from the work of Gilles and Peyrusse. Neglecting non-diagonal terms in dipolar and collision operators, the line profile is expressed as a sum of Voigt functions associated to the Stark components. The formalism relies on the use of parabolic coordinates within SO(4) symmetry. The relativistic fine-structure of Lyman lines is included by diagonalizing the hamiltonian matrix associated to quantum states having the same principal quantum number $n$. The resulting code enables one to investigate plasma environment effects, the impact of the microfield distribution, the decoupling between electron and ion temperatures and the role of satellite lines (such as Li-like $1sn\ell n'\ell' - 1s^2n\ell$, Be-like, etc.). Comparisons with simpler and widely-used semi-empirical models are presented.