This is a theoretical study of changes in several characteristics of the spectra of early-type supergiants owing to scattering of continuum radiation. Thomson scattering on free electrons is treated as the scattering mechanism, although the approach used here is quite general. The reason for changes in the spectral class of a star with constant bolometric luminosity and surface temperature is elucidated and the necessary conditions for their realization are introduced. The effect of scattering in the continuum on the magnitude of the intensity jumps in the hydrogen spectrum depending on the degree of ionization is studied. The conditions under which the Schuster mechanism for formation of emission lines sets in are clarified both for an isothermal atmosphere and for an atmosphere with a temperature gradient.

这是对由于连续辐射的散射而引起的早期类型超巨星光谱的几个特征变化的理论研究。尽管在此使用的方法相当通用，但将汤姆森在自由电子上的散射视为散射机制。阐明了恒辐射热度和表面温度恒星光谱类别变化的原因，并介绍了实现它们的必要条件。研究了电离程度对连续谱中散射对氢光谱强度跃迁幅度的影响。对于等温气氛和具有温度梯度的气氛，阐明了用于形成发射线的舒斯特机构的条件。