Nucleosynthesis in the Stellar Systems ω Centauri and M22

Publications of the Astronomical Society of Australia

G. S. Da Costa¹ 

[1] A. F. Marino

关键词: globular clusters: general;    globular clusters: individual (M22;    ω Cen);    stars: abundances;   

DOI  :  10.1071/AS10027

学科分类：天文学(综合)

来源: CSIRO

【 摘 要 】

The stellar system ω Centauri (ω Cen) is well known for the large range in elemental abundances among its member stars. Recent work has indicated that the globular cluster M22 (NGC 6656) also possesses an internal abundance range, albeit substantially smallerthan that in ω Cen. Here we compare, as a function of [Fe/H], element-to-iron ratios in the two systems for a number of different elements using data from abundance analyses of red giant branch stars. It appears that the nucleosynthetic enrichment processes were very similar in these two systems despite the substantial difference in total mass.

【 授权许可】

Unknown