Collaborative Research: Sharpening the Lithium Probe of Stellar Evolution

在这个合作项目中，PI将使用光谱学和光度学来测量七个疏散星团中数百颗恒星的Li和其他元素的丰度，以限制恒星内部结构的模型。该项目的合作部分将汇集测光和光谱学专业知识，以便研究人员能够解决异常Li丰度的奥秘，这可能表明其他未知的物理机制在恒星中起作用。两个PI？s有机构访问适当的观测站（WIYN和Mt.拉古纳）。这项工作将对银河系演化和宇宙学产生更广泛的影响，而PI？s将在两所大学培训研究生和本科生。

In this collaborative project, the PI's will use spectroscopy and photometry to measure the abundances of Li and other elements for hundreds of stars in seven open clusters, in order to constrain models of interior stellar structure. The collaborative component of the project will bring together photometry and spectroscopy expertise so that the investigators can address the mystery of anomalous Li abundances, which may indicate that additional, as yet unknown, physical mechanisms act in stars. Both PI?s have institutional access to appropriate observatories (WIYN and Mt. Laguna). The work will have broader impacts to Galactic evolution and cosmology, and the PI?s will train undergraduate and graduate students in research at two universities.