Absolute Proper Motions of the Magellanic Clouds and Milky Way Globular Clusters

麦哲伦星云和银河系球状星团的绝对自行0407292耶鲁大学南方天文台的威廉·范·阿尔特纳将开展一项研究银河系内部结构和引力势的计划。PI计划从球状星团的三维速度出发，研究银河系隆起区的结构、内晕的结构和性质、内侧暗物质密度分布、吸积组装晕的性质，以及轨道分布与球状星团系统动力学演化之间的关系。此外，PI建议对大小麦哲伦云(LMC，SMC)和云间桥区进行大约450平方度的自行研究。该计划将使人们对星系的形成有更广泛的了解。这项工作具有国际成分，促进了耶鲁大学和圣胡安大学(阿根廷)之间的互动。学生培训，特别是将圣胡安大学天文学专业的女性纳入其中，也是这一努力的一个组成部分。

Absolute Proper Motions of the Magellanic Clouds and Milky Way Globular ClustersABSTRACTAST 0407292 van AltenaDr. William van Altena, at the Yale Southern Observatory, Inc., will undertake a program to study the inner structure and gravitational potential of the Milky Way. From the three dimensional velocities of globular clusters, the PI plans to investigate the structure of the bulge region of the Galaxy, the structure and properties of the inner halo, the inner dark-matter density profile, properties of the accretion-assembled halo, and the correlation between the orbital distribution and the dynamical evolution of the globular-cluster system. Additionally the PI proposes a roughly 450-square-degree proper-motion study of the Large and Small Magellanic Clouds (LMC, SMC) and an Intercloud Bridge region. The program will result in a broader understanding of the formation of galaxies. The work has an international component, fostering interaction between Yale and the University of San Juan (Argentina). Student training, and in particular the inclusion of female astronomy majors at the University of San Juan, is also a component of the effort.