Low and intermediate mass star yields: The evolution of carbon abundances
Abstract
We present a set of low and intermediate mass star yields based on a modeling of the TP--AGB phase which affects the production of nitrogen and carbon. These yields are evaluated by using them in a Galaxy Chemical Evolution model, with which we analyze the evolution of carbon abundances. By comparing the results with those obtained with other yield sets, and with a large amount of observational data, we conclude that the model using these yields combined with those from Woosley & Weaver (1995) for massive stars properly reproduce all the data. The model reproduces well the increase of C/O with increasing O/H abundances. Since these massive star yields do not include winds, it implies that these stellar winds might have a smoother dependence on metallicity than usually assumed and that a significant quantity of carbon proceeds from LIM stars.
Cite
@article{arxiv.astro-ph/0411746,
title = {Low and intermediate mass star yields: The evolution of carbon abundances},
author = {M. Gavilan and J. F. Buell and M. Molla},
journal= {arXiv preprint arXiv:astro-ph/0411746},
year = {2016}
}
Comments
21 pages, 11 figures. To be published in Astronomy and Astrophysics