Abundance Studies of Open Clusters: Lithium and Metallicities

疏散团簇的丰度研究：锂和金属性

• 批准号: 0206202
• 负责人: Constantine Deliyannis
• 金额: $ 20.75万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0206202&HistoricalAwards=false
• 关键词: Abundance; Studies; Open; Clusters; Lithium

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.

康斯坦丁·德利扬尼斯博士在印第安纳州布鲁明顿的印第安纳大学获得了研究疏散星团成员中锂(Li)丰度的资金。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开放星团研究(WOCS)，该研究已经由WIYN联盟成员进行。这项研究将对不同年龄恒星的Li丰度进行详细观察，试图了解我们目前恒星结构和演化模型的失败。将对6到10个不同年龄的星团进行观测。Deliyannis博士将致力于确定锂的贫乏与金属含量的关系，锂“缺口”随年龄的发展，以及锂的峰值和平台期。