The evolution of intermediate-mass stars from the zero-age main sequence to the base of the asymptotic giant branch as a function of mass and composition

Abstract

view Abstract Citations (194) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The evolution of intermediate-mass stars from the zero-age main sequence to the base of the asymptiotic giant branch as a function of mass and composition. Becker, S. A. Abstract A more complete understanding of the evolution of star clusters and galaxies requires detailed knowledge of more stellar models which span a greater mass range and which follow more of the later evolutionary phases. The considered investigation has the objective to provide some of this information by presenting a consistent set of stellar models of intermediate mass for a wide range of composition which are evolved from the zero-age main sequence to the base of the asymptotic giant branch. Twenty models are studied which span ranges of the initial helium mass fraction, the initial heavy-element mass fraction, and the model mass. The information supplied in this investigation when integrated with that of Mengel et al. (1979) and Sweigart and Gross (1978) provides a larger data base which can be immediately applied to the construction of isochrones, as well as put to use in the study of the chemical evolution of galaxies and the integrated properties of stellar systems. Publication: The Astrophysical Journal Supplement Series Pub Date: March 1981 DOI: 10.1086/190721 Bibcode: 1981ApJS...45..475B Keywords: Asymptotic Giant Branch Stars; Giant Stars; Main Sequence Stars; Stellar Evolution; Stellar Mass; Stellar Models; Stellar Structure; Hertzsprung-Russell Diagram; Star Clusters; Tables (Data); Astrophysics full text sources ADS |