U.S.-Japan Cooperative Science: Studies of the Physical Properties of Galaxies with the Sloan Digital Sky Survey

美日合作科学：利用斯隆数字巡天研究星系的物理特性

• 批准号: 9513094
• 负责人: Michael Strauss
• 金额: $ 1.02万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-04-01 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9513094&HistoricalAwards=false
• 关键词: U.S.; Japan; Cooperative; Science; Studies

9513094 Strauss This award supports a three-year cooperative research project between Dr. Michael Strauss (Princeton University) and collaborators at Princeton, the Johns Hopkins University, and the University of Washington, and Dr. Masataka Fukugita (University of Kyoto) and collaborators in Kyoto and Tokyo. They plan to use data from the Sloan Digital Sky Survey to carry out a number of investigations of the physical nature of galaxies. The Sloan Digital Sky Survey, with accurate, well-calibrated, digital images in five broad optical bands covering 1/4 of the sky, together with high-quality spectroscopic information on the million brightest galaxies, promises to allow statistical studies of the optical properties of galaxies at a level of sophistication and detail that is currently impossible with existing data. These include detailing the multivariate distribution of galaxies in magnitude, color, diameter, and morphological properties; searches for ultra-low surface brightness galaxies; the definition and study of large, complete samples of active galaxies; studies of the relative clustering of galaxies of different physical types, and stellar population studies from the galaxy spectra. This proposal will support travel between the Japanese and US astronomers to enhance collaborations. Therefore, this proposal fulfills the objectives of the Program in its exchange and transfer of scientific knowledge through an international collaboration. ***

9513094施特劳斯奖资助一个为期三年的合作研究项目，该项目由Michael Strauss博士(普林斯顿大学)与普林斯顿大学、约翰·霍普金斯大学和华盛顿大学的合作者，以及Masataka Fukugita博士(京都大学)与京都和东京的合作者共同完成。他们计划使用斯隆数字天空勘测的数据对星系的物理性质进行一系列调查。斯隆数字巡天计划在覆盖四分之一天空的五个宽阔的光学波段上拍摄了精确、校准良好的数字图像，并提供了数百万个最亮星系的高质量光谱信息，有望以目前现有数据无法达到的复杂和详细的水平对星系的光学性质进行统计研究。这些包括详细说明星系在星等、颜色、直径和形态属性上的多变量分布；搜索超低表面亮度星系；定义和研究大的、完整的活动星系样本；研究不同物理类型的星系的相对星系团；以及从星系光谱研究恒星群。这项提议将支持日美天文学家之间的旅行，以加强合作。因此，这项建议实现了该计划通过国际合作交流和转让科学知识的目标。***