Carbon Stars and Nucleosynthesis in Galaxies
Abstract
The role of carbon stars in the build-up of chemical elements in galaxies is discussed on the basis of stellar evolution calculations and estimated stellar yields, abundance analyses of AGB stars, galactic-evolution models and abundance trends among solar-type disk stars. We conclude that the AGB stars in general, and carbon stars in particular, probably are main contributors of -elements, that their contributions of flourine and carbon are quite significant, and that possibly their contributions of lithium, C and Ne are of some importance. Also contributions of N, Na and Al are discussed. The major uncertainties that characterize almost any statement concerning these issues are underlined.
Cite
@article{arxiv.astro-ph/9610261,
title = {Carbon Stars and Nucleosynthesis in Galaxies},
author = {Bengt Gustafsson and Nils Ryde},
journal= {arXiv preprint arXiv:astro-ph/9610261},
year = {2007}
}
Comments
16 pages, LaTex, no figures, Invited Review at the IAU Symposium 177 ``The Carbon Star Phenomenon", to be published in the proceedings. LaTeX and postscript files also available at ftp.astro.uu.se/pub/articles/atmos/P107