NStars: Spectroscopy in the Local Neighborhood: A High Resolution Survey and Abundance Analysis of Selected Stars

NStars：当地邻域的光谱学：对选定恒星的高分辨率调查和丰度分析

• 批准号: 0086249
• 负责人: R.Earle Luck
• 金额: $ 23.7万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2003-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0086249&HistoricalAwards=false
• 关键词: NStars; Spectroscopy; Local; Neighborhood; Resolution

ABSTRACTLuck, Earle"NStars: Spectroscopy in the Local Neighborhood: A High-Resolution Survey and Abundance Analysis of Selected Stars"AST-0086249Dr. Luck is conducting a high-resolution survey of about 150 stars within 15 parsecs of the Sun. The objective of the project is to assemble a high quality database from which the frequency of binary companions, spectral peculiarities, and spectrum variability can be assessed. In addition, a detailed abundance analysis is being performed on ~80-100 stars with and without planets to determine what role metallicity plays in the frequency of planetary formation. The observations for the project are conducted the University of Texas McDonald Observatory 2.1-m telescope.Funding for this project was provided by the NSF Stellar Astronomy & Astrophysics (AST/SAA) program through the joint NSF/NASA "Nearby Stars (NStars)" initiative, and the NSF Mathematical & Physical Sciences Directorate Office of Multidisciplinary Activities (MPS/OMA).

Earle Luck“NStars：Spectroscopy in the Local Neighborhood：A High-Resolution Survey and Abnormal Analysis of Selected Stars“AST-0086249Dr. Luck正在对距离太阳15秒差距内的约150颗恒星进行高分辨率调查。 该项目的目标是建立一个高质量的数据库，从中可以评估二进制同伴的频率，光谱特性和光谱变异性。 此外，正在对大约80-100颗有行星和没有行星的恒星进行详细的丰度分析，以确定金属丰度在行星形成频率中扮演的角色。 该项目的观测是由德克萨斯大学麦克唐纳天文台2.1米望远镜进行的。该项目的资金由NSF恒星天文天体物理学（AST/SAA）计划通过NSF/NASA联合“邻近恒星（NStars）”倡议和NSF数学物理科学理事会多学科活动办公室（MPS/OMA）提供。