Yields from Low- and Intermediate-Mass Stars

Details Yields from Low- and Intermediate-Mass Stars Yields from Low- and Intermediate-Mass Stars

1998-02-10

arxiv.org/abs/astro-ph/9802113v1

Astronomy and Astrophysics

Astrophysics

9 pages, 1 figure, to be published in the proceedings of the workshop "Abundance Profiles : Diagnostic Tools for Galaxy Histor

Scientific paper

Stellar nucleosynthesis is the corner-stone of many astrophysical problems. Its understanding, which can be tested by countless observations, leads to insights into the stellar structure and evolution, and provides crucial clues to the physics of the galaxies and of the universe. Precise answers can be given to the questions ``When, where and how the chemical elements are synthesized in stars?", and will be summarized in this paper for what concerns stars of low and intermediate mass. However, in spite of the observational confirmation of many predictions, important and complementary data reveal some weaknesses in the theory of stellar physics. In particular, the mixing processes of chemicals inside the stars, as well as the mass loss and ejection mechanisms, are poorly known. Their rudimentary treatment imposes the use of parameters which strongly influence the predicted chemical yields. In our discussion, we will underline the future developments that may lead to quantitative changes in the predictions of chemicals production by low and intermediate mass stars.

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