Collaborative Project: Independently Determined Distances to the Magellanic Clouds

合作项目：独立确定到麦哲伦星云的距离

• 批准号: 9221595
• 负责人: Thomas Moffett
• 金额: $ 5.78万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-01 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221595&HistoricalAwards=false
• 关键词: Collaborative; Project; Independently; Determined; Distances

Collaborative Project: Independently Determined Distances to the Magellanic Clouds. Dr. Moffett, in collaboration with Dr. Thomas Barnes at the University of Texas, will carry out an observational project to determine distances to the Large and Small Magellanic Clouds by means of the surface brightness technique applied to Cepheid variable stars. Existing and new photometric data will be combined with existing high quality radial velocities in a surface brightness analysis to obtain individual distances and radii for all twenty two extragalactic Cepheids. These individual distances will establish mean distances to the Magellanic Clouds independent of other astrophysical distance scales and independent of the interstellar reddening of these Cepheids.

合作项目：独立确定到麦哲伦星云的距离。 莫菲特博士将与德克萨斯大学的托马斯·巴恩斯博士合作开展一项观测项目，通过应用于造父变星的表面亮度技术来确定大麦哲伦星云和小麦哲伦星云的距离。 现有和新的光度数据将与表面亮度分析中现有的高质量径向速度相结合，以获得所有 22 个河外造父变星的单独距离和半径。 这些单独的距离将建立到麦哲伦星云的平均距离，独立于其他天体物理距离尺度，也独立于这些造父变星的星际红化。