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Population II Stellar Structure and Evolution: A Few Selected Topics

Published online by Cambridge University Press:  12 April 2016

Cesare Chiosi
Cesare Chiosi*
Affiliation:
Astronomy Department, University of Padua, Vicolo Osservatorio 5, 35122 Padua, Italy

Abstract

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In this review we discuss in some detail the evolution of low mass stars, and other related topics, limiting ourselves to the class of stars with solar and super-solar metal content that likely constitute the basic component of elliptical galaxies and bulges. In particular, we deal with the stars responsible of the UV flux observed in elliptical galaxies and the role played by the chemical composition and mass loss by stellar wind in producing hot progenies with effective temperatures in the range indicated by the UV data. In this context, we briefly report on recent chemo - spectro - photometric models for elliptical galaxies. In addition to this, we discuss the subject of galaxy ages by means of the ultraviolet properties and narrow band indices. Finally, we briefly report on a new formulation of diffusive mixing in stellar interiors and its effects on the structure and evolution of intermediate- and high-mass stars.

Type
Part 1. The Scientific Programme
Information
International Astronomical Union Colloquium , Volume 155: Astrophysical Applications of Stellar Pulsation , 1995 , pp. 12 - 22
Copyright
Copyright © Astronomical Society of the Pacific 1995

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