用惩罚函数法拟合耀斑后环光谱  

Preliminary Exploration of the Mathematical Method for Fitting Line Profiles

作　　者：李可军[1] 白金明[1] 向福元 

机构地区：[1]中国科学院云南天文台,昆明650011

出　　处：《云南天文台台刊》1993年第1期5-9,共5页Publications of the Yunnan Observatoty

摘　　要：在光谱拟合分析过程中,由于谱线的不对称,目标函数呈现出较强的非线性;拟合参数增多,需要对拟合参数的定义域进行约束。本文利用完全线性化方法处理非线性目标函数,用惩罚函数法对拟合参数约束。并用这种方法,拟合计算了1984年2月18日环珥的一些不对称谱线。In the course of the fitting of line profiles, the objective function is highly non-linear and has more fitting parameters because of the asymmetry of line profiles, and therefore the domain of definition of the fitting parameters need be restricted. In this paper, the non-linear objective function is treated by means of the complete linearization method and the fitting parameters are restricted by using the punished function. Finally, the asymmetrical lines of the loop prominence of 1984 February 18 are fitted according to this method.

关 键 词：日珥 谱线 耀斑 环光谱 惩罚函数法 

分 类 号：P182.61[天文地球—天文学]