Radiative opacity tables for 40 stellar mixtures

Abstract

Radiative opacities for 40 mixtures of hydrogen, helium, and heavier elements are presented which represent the best large set of homogeneous data available for stellar structures. Smaller special tables of opacities are also calculated for specific applications in studies of stellar structure, evolution, and pulsation. Improvements in the computational methods include an increased iron abundance in the heavy-element composition, a better allowance for the ion continuum depression, and corrections in several bound-electron energy levels. It is noted that some of the opacities are not realistic because of zero hydrogen abundances or a lack of any possible molecules.