Structure of the Milky Way from Kinematical Databases

运动学数据库中的银河系结构

• 批准号: 0407293
• 负责人: William Van Altena
• 金额: --
• 依托单位: Yale Southern Observatory, Inc.
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0407293&HistoricalAwards=false
• 关键词: Structure; Milky; Way; Kinematical; Databases

Structure of the Milky Way from Kinematical DatabasesABSTRACTAST 0407293 van AltenaDr. William van Altena, at the Yale Southern Observatory, Inc., will initiate a program to use the Southern Proper Motion (SPM) Survey to investigate the thick disk and halo of the Milky Way. The goal for this research is to produce interim catalogs of proper motions, while collection and reduction of data that will form the second epoch for the SPM continues. The SPM program will provide absolute proper motions and broadband photometry for approximately 100 million stars in the southern sky. The recently completed DENIS and 2MASS surveys provide infrared photometry for essentially all of the SPM stars. Through ongoing efforts to collect spectra of stars in the halo and thick disk, and a collaboration with the Radial Velocity Experiment (RAVE) in Australia, about 15 million of the SPM stars will have determinations of radial velocities and chemical abundances. The PI will establish an Internet-accessible database for use by the astronomical community. It will contain the 100 million SPM absolute proper motions, as well as photometry, spectroscopy, and radial velocities for stars in common with the SPM. This database will provide the "raw material" for numerous research programs.

来自运动学数据库的银河系结构ABSTRACTAST 0407293 van货车AltenaDr.耶鲁南方天文台的威廉货车阿尔特纳，将启动一项计划，利用南方自行巡天（SPM）来调查银河系的厚盘和晕。 这项研究的目标是产生自行的临时目录，同时继续收集和减少将形成SPM第二个纪元的数据。 SPM计划将为南天大约1亿颗恒星提供绝对自行和宽带测光。最近完成的DENIS和2MASS巡天提供了几乎所有SPM恒星的红外测光。通过不断努力收集晕和厚盘中恒星的光谱，以及与澳大利亚径向速度实验（RAVE）的合作，大约1500万颗SPM恒星将确定径向速度和化学丰度。 PI将建立一个可通过互联网访问的数据库，供天文学界使用。它将包含1亿SPM绝对自行，以及测光，光谱学和与SPM相同的恒星径向速度。这个数据库将为许多研究项目提供“原材料”。