Production of Aluminium and the Heavy Magnesium Isotopes in Asymptotic Giant Branch Stars

Publications of the Astronomical Society of Australia

A. I. Karakas¹ 

[1] J. C. Lattanzio

关键词: stars: AGB and post-AGB;    stars: abundances;    stars: interiors;    stars: low mass;    ISM: abundances;   

DOI  :  10.1071/AS03010

学科分类：天文学(综合)

来源: CSIRO

【 摘 要 】

We investigate the production of aluminium and magnesium in asymptotic giant branch models covering a wide range in mass and composition. We evolve models from the pre-main sequence, through all intermediate stages, to near the end of the thermally-pulsing asymptotic giant branch phase. We then perform detailed nucleosynthesis calculations from which we determine the production of the magnesium and aluminium isotopes as a function of the stellar mass and composition. We present the stellar yields of sodium and the magnesium and aluminium isotopes. We discuss the abundance predictions from the stellar models in reference to abundance anomalies observed in globular cluster stars.

【 授权许可】

Unknown