Making Carbon in Stars

Details Making Carbon in Stars Making Carbon in Stars

2004-11-30

arxiv.org/abs/astro-ph/0411783v1

Nucl.Phys. A758 (2005) 375-382

Astronomy and Astrophysics

Astrophysics

Conference Proceedings: NIC8; 8 pages, 6 figures

Scientific paper

10.1016/j.nuclphysa.2005.05.178

The triple alpha process plays an important role in the production of 12C in stars. Its rate is known with an accuracy of about 12%. We examine the corresponding uncertainties introduced in the description of pre-supernova stars, of nucleosynthesis in a core-collapse SN explosion, and of the production of 12C during the third dredge-up in asymptotic giant branch (AGB) stars. For the AGB case we consider also the effects of uncertainties in the 14N(p,gamma)15O rate. We conclude that the present accuracy of the triplr alpha rate is inadequate and describe new experiments that will lead to a more accurate value.

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