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

M. Gavilan·J. F. Buell·M. Molla
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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.

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M. Gavilan, J. F. Buell, M. Molla. 2004-11-28. Low and intermediate mass star yields: The evolution of carbon abundances. https://doi.org/10.1051/0004-6361%3A20041949

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