Nova nucleosynthesis and Galactic evolution of the CNO isotopes

Details Nova nucleosynthesis and Galactic evolution of the CNO isotopes Nova nucleosynthesis and Galactic evolution of the CNO isotopes

2003-02-12

arxiv.org/abs/astro-ph/0302233v1

Mon.Not.Roy.Astron.Soc. 342 (2003) 185

Astronomy and Astrophysics

Astrophysics

17 pages, 9 figures, accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2003.06526.x

We study the role played both by novae and single stars in enriching the ISM of the Galaxy with CNO group nuclei, in the framework of a detailed successful model for the chemical evolution of both the Galactic halo and disc. Once all the nucleosynthesis sources of CNO elements are taken into account, we conclude that 13C, 15N and 17O are likely to have both a primary and a secondary origin, in contrast to previous beliefs. Given the uncertainties still present in the computation of theoretical stellar yields, our results can be used to put constraints on stellar evolution and nucleosynthesis models.

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