Collaborative Research: Chemical Composition of the Galactic Bulge

AST-0098739 Rich这是一个合作研究项目，涉及安德鲁·麦克威廉博士，华盛顿卡内基研究所的天文台，和R.迈克尔·里奇，加州大学洛杉矶分校。 这些研究人员将对银河系凸出部分短轴沿着距离银河系核心40至1，000秒差距的巨型恒星的详细化学丰度进行大规模调查。 这项研究将提供有关银河系凸起的化学成分和金属丰度函数的详细知识，目前人们只知道银河系的局部盘和晕。 由于现存的化学演化模型都是基于这些局部成分，因此凸起提供了一个非常不同的环境来测试广泛接受的化学演化范式。 此次调查将使用新委托的位于智利的6. 5米麦哲伦望远镜和位于夏威夷莫纳克亚山的凯克望远镜。 ***

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. ***