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标题：Light and heavy elements nucleosynthesis in low mass AGB Stars
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作者：S. Cristallo, O.,Straniero ; R. Gallino ; L. Piersanti 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a new set of low mass AGB star models having the same mass (2 M) and different metallicities. For each metallicity we follow the evolution from the Pre Main Sequence up to the end of the Thermally Pulsing AGB Phase. By means of an exponential decay of the convective velocities at the inner border of the convective envelope we obtain the formation of a tiny 13C pocket after Third Dredge Up episodes, whose extension in mass decreases along the AGB path. Detailed pulse by pulse surface enrichments and final yields at different metallicities, computed by using a full nuclear network coupled to the FRANEC stellar evolutionary code, are presented and discussed. We follow the production of both light and heavy elements describing nuclear chains responsible for their production and show new results for the synthesis of radioactive isotopes such as 26Al and 60Fe.