Sterne aus He-reichen Mischungen

A stellar evolution program developed by Hofmeister et al. (1964) has been used in the calculation of stellar models. Calculations related to a main sequence of homogeneous stars are considered. Attention is given to the thermonuclear processes in the interior of stars, taking into account differences between stars containing much helium and the normal H-rich stars. It is found that higher effective temperatures and luminosities are characteristic for stars consisting of a helium-rich material.