U.S.-France Cooperative Research: Gravitational Microlensing in Unresolved Star Fields and a New Probe of the Dark Matter in External Galaxies

美法合作研究：未解析星场中的引力微透镜和外部星系中暗物质的新探测器

• 批准号: 9603405
• 负责人: Arlin P. Crotts
• 金额: $ 1.5万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-15 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9603405&HistoricalAwards=false
• 关键词: U.S.; France; Cooperative; Research; Gravitational

This three-year award for U.S.-France cooperative research in astronomy involves Arlin P. Crotts of Columbia University and Jean Kaplan of the College de France, Paris, France. The objective of their research is to survey gravitational microlensing of stars in the Andromeda Galaxy (M31). Microlensing is a technique used by astronomers in their effort to observe dark matter. It is also used for planet searches and for probing the structure of the milky way. The investigators will survey intrinsically variable stars and monitor star fields in M31. The collaboration takes advantage of parallel investigations conducted by the French group and will allow both groups to address weather and scheduling gaps in their respective data sets. Observations at the VATT (Vatican Advanced Technology Telescope) and at the Pic du Midi Observatory will provide for better and continuous coverage.

这项为期三年的美法天文学合作研究奖涉及哥伦比亚大学的阿林·P·克洛茨 (Arlin P. Crots) 和法国巴黎法兰西学院的让·卡普兰 (Jean Kaplan)。 他们研究的目的是调查仙女座星系（M31）中恒星的引力微透镜效应。 微透镜是天文学家用来观察暗物质的一种技术。 它还用于行星搜索和探测银河系结构。 研究人员将调查本质变星并监测 M31 的星场。 此次合作利用了法国小组进行的并行调查，将使两个小组能够解决各自数据集中的天气和日程安排差距。 VATT（梵蒂冈先进技术望远镜）和 Pic du Midi 天文台的观测将提供更好和连续的覆盖。