Discovery and Analysis of Extremely Low Metallicity Stars Horizontal-Branch Stars, and A-Type Stars in the Galactic Halo

极低金属丰度星的发现与分析， 银河系晕中的水平分支星和A型星。 比尔斯博士将进行后续的光谱和光度测量 候选低金属量恒星的观测，视场水平 发现了分支星和视主序星A型 在一项正在进行的调查中。对低金属量的观察 候选人将提供一个显着增加的数量， 金属丰度小于太阳的千分之一的恒星 价值，从而能够进行广泛的调查， 银河系的形成和演化

Discovery and Analysis of Extremely Low Metallicity Stars, Horizontal Branch Stars, and A-Type Stars in the Galactic Halo. Dr Beers will carry out follow-up spectroscopic and photometric observations of candidate low metallicity stars, field horizontal branch stars, and apparent main sequence A-type stars discovered in an ongoing survey. Observations of the low metallicity candidates will provide a significant increase in the numbers of stars with metal abundances less than 1/1000th of the solar value, thereby enabling a wide range of investigations concerning the formation and evolution of our Galaxy.