EDP Sciences
Free Access
Volume 432, Number 3, March IV 2005
Page(s) 861 - 877
Section Galactic structure, stellar clusters and populations
DOI https://doi.org/10.1051/0004-6361:20041949

A&A 432, 861-877 (2005)
DOI: 10.1051/0004-6361:20041949

Low and intermediate mass star yields: The evolution of carbon abundances

M. Gavilán1, J. F. Buell2 and M. Mollá3

1  Departamento de Física Teórica, Universidad Autónoma de Madrid, 28049 Cantoblanco, Spain
    e-mail: mgavilan@eresmas.net
2  Department of Physics, Northeastern State University, Tahlequah, OK 74464, USA
    e-mail: buell@cherokee.nsuok.edu
3  Dpto. de Física de Fusión y Partículas elementales, C.I.E.M.A.T., Avda. Complutense 22, 28040 Madrid, Spain
    e-mail: mercedes.molla@ciemat.es

(Received 5 September 2004 / Accepted 8 November 2004)

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.

Key words: Galaxy: abundances -- stars: evolution -- Galaxy: abundances -- Galaxy: evolution -- galaxies: spiral

© ESO 2005

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.