Collaborative Research: Chemical Composition of the Galactic Bulge

合作研究：银河核球的化学成分

• 批准号: 0098739
• 负责人: Robert Rich
• 金额: $ 6.23万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2004-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0098739&HistoricalAwards=false
• 关键词: Collaborative; Research; Chemical; Composition; Galactic

AST-0098739RichThis is a collaborative research project involving Dr. Andrew McWilliam, Observatories of the Carnegie Institution of Washington, and Dr. R. Michael Rich, University of California at Los Angeles. These researchers will undertake a large survey of detailed chemical abundances in giant stars along the minor axis of the bulge of the Milky Way Galaxy, at distances ranging from 40 to 1000 parsec from the nucleus of the Galaxy. The study will provide detailed knowledge of the chemical composition and metallicity function of the Galactic bulge, which is presently well known only for the local disk and halo of the Galaxy. Since extant chemical evolution models are based on these local components, the bulge provides a very different environment with which to test the widely accepted paradigm of chemical evolution. The survey will use the newly commissioned 6.5-meter Magellan telescope in Chile and the Keck telescope on Mauna Kea, Hawaii. ***

这是一项合作研究项目，涉及华盛顿卡内基研究所天文台的Andrew McWilliam博士和加州大学洛杉矶分校的R. Michael Rich博士。这些研究人员将在距离银河系核心40到1000秒差距的距离上，沿着银河系凸起的小轴，对巨大恒星的详细化学丰度进行大规模调查。这项研究将提供银河系凸起的化学成分和金属丰度功能的详细知识，目前人们只知道银河系的局部圆盘和光晕。由于现存的化学演化模型都是基于这些局部成分，隆起提供了一个非常不同的环境来测试被广泛接受的化学演化范式。这次调查将使用智利新投入使用的6.5米麦哲伦望远镜和夏威夷莫纳克亚山的凯克望远镜。＊＊＊