Ages, Kinematics, and Chemistry of Stellar Populations

恒星族群的年龄、动力学与化学 1991年开始的一项计划将在太阳能发电厂完成。 莱尔德博士和布鲁斯卡尼博士在附近 北卡罗来纳州大学将鉴定出几千个 G矮星，然后确定准确的径向速度， 金属丰度，以测试离散与连续模型的 厚盘和薄盘种群。 本地样本将 并辅之以一项针对外银河系的持续计划 圆盘，现在在南银河曲速的方向上被探测到。 薄盘相对于厚盘和晕的年龄将 可以用场双星来推导。 最近的研究 邻近的河外星系盘人口，即大星系盘人口， 麦哲伦云，将从高精度径向研究 巨大恒星的速度和金属丰度。

Ages, Kinematics, and Chemistry of Stellar Populations. A program begun in 1991 will be carried to completion in the solar neighborhood wherein Dr. Laird, together with Dr. Bruce Carney at the University of North Carolina, will identify several thousand G dwarf stars, then determine accurate radial velocities and metallicities to test the discrete versus continuum models of the thick disk and thin disk populations. The local sample will be complemented by an on-going program aimed at the outer Galactic disk, now detected in the direction of the southern Galactic warp. The age of the thin disk relative to the thick disk and halo will be derived using field binary stars. The study of the nearest neighboring extragalactic disk population, that of the Large Magellanic Cloud, will be studied from high precision radial velocities and metallicities of giant stars.