Abundance Studies of Open Clusters: Lithium and Metallicities

AST-0206202 Deliyannis，Constantine Deliyannis博士在印第安纳州布卢明顿的印第安纳州大学获得基金，研究开放星星集群成员中锂（Li）的丰度。 他将使用威斯康星-印第安纳-耶鲁-NOAO（WIYN）3.5米望远镜上的多目标光谱仪同时对多达100颗恒星进行光谱观测。Deliyannis博士正在参与WIYN联盟成员正在进行的WIYN开放星团研究（WOCS），该研究将对不同年龄恒星的Li丰度进行详细观测，试图了解我们目前的恒星结构和演化模型的失败之处。将对6至10个不同年龄的星团进行观测。Deliyannis博士将致力于确定锂消耗的金属丰度依赖性，锂“间隙”随年龄的发展，以及锂峰值和平台。

AST-0206202Deliyannis, Constantine Dr. Deliyannis is awarded funds at Indiana University in Bloomington, Indiana to study the abundance of lithium (Li) in the members of open star clusters. He will use the multi-object spectrograph on the Wisconsin-Indiana-Yale-NOAO (WIYN) 3.5m telescope to make spectroscopic observations of up to 100 stars simultaneously. Dr. Deliyannis is participating in the WIYN Open Cluster Study (WOCS), a collaboration already underway by WIYN Consortium members.This study will make detailed observations of the Li abundance of stars of different ages in an attempt to understand the failures of our current stellar structure and evolution models. Observations of 6 to 10 clusters of different ages will be made. Dr. Deliyannis will work to determine the metallicity dependence of Li depletion, the development of the Li "gap" with age, and the Li peak and plateau.