处理Non-LTE谱线覆盖效应的有效方法——近似A算子法  

An Effective Method for Treating the Blanketing Effect of A Non-LTE Line

作　　者：吴关钱 

出　　处：《天文研究与技术》1990年第2期44-50,共7页Astronomical Research & Technology

摘　　要：本文在分析完全线性化方法不能很好地处理Non-LTE谱线覆盖效应的基础上,介绍了一种由Werner(1986年)引进的能有效的处理Non-LTE谱线覆盖效应的计算Non-LTE恒星大气模型的方法——近似A算子法。并对这种方法的优缺点和可能的应用作了分析和讨论。In this paper, a new method, i. e. the approximate lambda operator methcd introduced by Werner (1986) is proposed in detail for calculating the Non-LTE stellar atmospheric model and for treating the blanketing effect of the Non-LTE line effectively, on the basis of the analysis of the fact that the completely linearized method can not be used to deal with the blanketing effect of the Non-LTE line well. And the advantages, disadvantages and possible application of the method are also analysed and discussed,

关 键 词：谱线覆盖 NON-LTE 子法 恒星大气 近似解 线性化方法 近似算子 Werner 光学深度 非线性方程组 

分 类 号：P1[天文地球—天文学]