Studying Stellar Evolution and Galactic Halo Formation with Globular Cluster Abundance Inhomogeneities

用球状星团的Abstract不均匀性研究恒星演化和星系晕的形成。圣克鲁斯的加州大学的格雷姆·史密斯将进行一项计划，调查红巨星经历内部混合并随后产生改变的表面丰度的程度，并探索银河系晕的起源。球状星团的化学丰度不均匀性将被用于三管齐下的研究：1）PI将确定球状红巨星的深度混合是否取决于星星的金属丰度; 2）PI将调查CN-强红巨星的发生率是否以及如何在具有不同性质的星系团中变化，3）PI将确定CN-强红巨星的发生率在多大程度上变化。强巨星存在于晕场中，球状星团与人马座矮星系有关。 这项研究的更广泛的影响在于学生的培训，与博士的参与。学生在研究中。

Studying Stellar Evolution and Galactic Halo Formation with Globular Cluster Abundance InhomogeneitiesABSTRACTAST 0406988 Graeme SmithDr. Graeme Smith, at the University of California, Santa Cruz, will undertake a program to investigate the extent to which red giant stars undergo interior mixing and subsequently produce altered surface abundances, and to probe the origin of the Galactic halo. Chemical abundance inhomogeneities of Galactic globular clusters will be used in a three-pronged approach in this effort: 1) The PI will determine whether deep mixing in globular red giants depends on the star's metallicity; 2) The PI will investigate if and how the incidence of CN-strong red giants varies in clusters with different properties and 3) The PI will determine the extent to which CN-strong giants are present in the halo field, and globulars associated with the Sagittarius dwarf galaxy. The broader impact of this proposed research resides with student training, with the involvement of a Ph.D. thesis student in the research.