晚型星红外谱拟合的线性化方法

Linearization Method for Fitting the Infrared Spectrum of the Late Type Stars

本文针对晚型星红外辐射的一些模型，讨论相应的拟合方法。对有拱星壳层的晚型星的双黑体模型，给出了具体的拟合方法──线性化方法。最后我们就拟合结果及拟合程序编制方面讨论了线性化方法的优缺点。

Some fitting methods are discussed for the models of the infrared spectra of the late type stars, and the practical fitting method, i.e. the linearization method (Taylor series method) is given for the 'double-blackbody model' fitting of the late type stars with circumstellar dust shells. Based on the fitting results and the computer programming, advantages and shortages about the linearization method are also discussed in the paper