X-ray emission spectra from ionizing plasmas
X-ray emission spectra from ionizing plasmas
复制标题
电离等离子体的 X 射线发射光谱
DOI：
10.1007/bf00651415
复制
发表时间：
1984
影响因子：
1.9
通讯作者：
K. Masai
中科院分区：
文献类型：
--
作者：
K. Masai
研究了非平衡电离对发射光谱的影响。电离速率方程采用本征值法求解，避免了平衡点附近的数值不稳定性，同时也节省了计算时间。我们的格式对线性问题是有效的，并适用于解决时间相关的紧耦合方程组。作为一个例子，我们计算了在星际条件下适用于冲击加热等离子体的电离瞬态阶段的发射光谱（1-160 Ω）。我们的结果对于分析稀薄电离等离子体（如超新星遗迹）的光谱是有用的。
Effects of non-equilibrium ionization on emission spectra are studied. Ionization rate equations are solved with the eigenvalue-method to avoid a numerical instability near the equilibrium and also to save time of computations. Our scheme is valid for linear problems, and is applicable to solve closely coupled equations of time-dependent problems. As an example, we calculate emission spectra (1–160 Å) in the transient phase of ionization under interstellar conditions applicable to a shock-heated plasma. Our results are useful for an analysis of the spectra from tenuous ionizing plasmas-such as supernova remnants.