中性氦谱线Stark展宽廓线的计算机模拟计算
New Calculations of Stark Broadened Profiles for Neutral Helium Lines Using Computer Simulations
摘要：
我们提出了新的计算斯塔克加宽配置文件的中性氦线使用计算机模拟，包括一些重要的方面，旨在更好地代表氦原子的动力学环境。这些措施包括统一的离子和电子的治疗，离子动力学的校正，过渡的电子的贡献扩大从核心的翅膀的轮廓，数值积分的时间演化运营商的氦扰动由一个波动的电场，德拜校正的相关运动的带电扰动，局部密度变化，和粒子再注入。我们比较了我们的模拟结果为他我$λλ$ 4471和4922线与其他结果发表在文献中。我们还测试了窄线（He I $λλ$ 5877和6678）和宽线（He I $λλ$ 4026和4144）的模拟环境。我们发现，窄线比宽线更难充分产生。
英文摘要：
We present new calculations of Stark broadened profiles for neutral helium lines using computer simulations that include some important aspects aimed at better representing the dynamical environment of the helium atom. These include the unification of ion and electron treatment, the correction for ion dynamics, the transition of the electron contribution to broadening from the core to the wings of the profile, the numerical integration of the time evolution operator of helium perturbed by a fluctuating electric field, the Debye correction for the correlation of the motion of charged perturbers, local density variations, and particle reinjection. We compare the results of our simulations for the He I $λλ$4471 and 4922 lines with other results published in the literature. We also test our simulation environment for narrow lines (He I $λλ$5877 and 6678) and broader lines (He I $λλ$4026 and 4144). We find that the narrow lines are more difficult to produce adequately than the the broader ones.
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