Nucleosynthesis in evolved stars with the NACRE compilation

Details Nucleosynthesis in evolved stars with the NACRE compilation Nucleosynthesis in evolved stars with the NACRE compilation

1999-10-15

arxiv.org/abs/astro-ph/9910289v1

Astronomy and Astrophysics

Astrophysics

Proceedings of the 35rd Liege Int. Astroph. Coll. 1999 (6 pages, 7 figures; please contact A.Palacios to get the figure "schem

Scientific paper

Nucleosynthesis in evolved (RGB and AGB) low-mass stars is reviewed under the light of the reaction rates recommended in the NACRE compilation (Angulo et al. 1999). We use a parametric model of stellar nucleosynthesis to investigate the uncertainties that still exist nowadays on the nuclear data and to give a critical point of view on the resulting evolution of the chemical abundances. We discuss in particular (i) the NeNa and MgAl modes of hydrogen burning in the context of the chemical anomalies observed in RGB globular cluster stars, (ii) the helium combustion in a thermal pulse of an AGB star.

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