Infrared Spectroscopic Studies in Stellar Abundances and Galactic Chemical Evolution

恒星丰度和银河化学演化的红外光谱研究

• 批准号: 0407057
• 负责人: Suchitra Balachandran
• 金额: --
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0407057&HistoricalAwards=false
• 关键词: Infrared; Spectroscopic; Studies; Stellar; Abundances

Infrared Spectroscopic Studies in Stellar Abundances and Galactic Chemical EvolutionABSTRACTAST 0407057 BalachandranDr. Suchitra Balachandran, at the University of Maryland, will continue a program to determine chemical abundances of stellar atmospheres in stars in the Galactic Center. The work involves the measurement of new different elements, and extends the previous work to fainter stars, for the purpose of studying older stellar populations. This study will also be extended into the Bulge of the Galaxy. Additionally, the PI will derive chemical abundances and isotope ratios in luminous supergiant stars in the Milky Way and in the Magellanic Clouds, for the purpose of constraining the physics of internal mixing within stars.Educating students, both at the undergraduate and graduate level, is a major broader impact of the proposed research. The PI will continue to make a special effort to mentor young women. Public outreach activities associated with the University of Maryland Observatory Open Houses will be undertaken, and the PI will continue to serve the astronomical community through service on committees related to her research expertise.

恒星丰度和银河系化学演化的红外光谱研究。马里兰州大学的Suchitra Balachandran将继续进行一项计划，以确定银河系中心恒星中恒星大气的化学丰度。 这项工作涉及测量新的不同元素，并将以前的工作扩展到较暗的恒星，以研究较老的恒星种群。 这项研究也将扩展到银河系的凸起。 此外，PI还将推导出银河系和麦哲伦星云中发光超巨星的化学丰度和同位素比，以限制恒星内部混合的物理学。教育本科生和研究生的学生是拟议研究的一个重大影响。 PI将继续特别努力指导年轻妇女。 将开展与马里兰州大学天文台开放日相关的公共外联活动，PI将继续通过与她的研究专业知识相关的委员会服务于天文学界。