Completing the MEGA Survey of Microlensing in M31

完成 M31 微透镜 MEGA 调查

• 批准号: 0406970
• 负责人: Arlin P. Crotts
• 金额: $ 13.09万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0406970&HistoricalAwards=false
• 关键词: Completing; MEGA; Survey; Microlensing; M31

Completing the MEGA Survey of Microlensing in M31ABSTRACTAST 0406970 CrottsDr. Arlin Crotts, at Columbia University, will use this award to complete the analysis of the "MEGA" gravitational microlensing survey of stars in M31. The PI's group has constructed the major hardware for the project, nearly completed observations totaling roughly 350 nights, developed software, and begun the analysis of the data. To-date, a number of likely microlensing events have been found, and the group has developed techniques to distinguish variable stars from microlensing events. Broader impact of this work to the astronomical research community will result from the existence of data on variable stars that are the byproduct of the microlensing survey. Additionally, the PI will make the image subtraction package, used in the data analysis, available for general distribution. A potential medical application of the analysis technique in producing more sensitive CT-scan detections of small tumors has also been identified, giving this work a multidisciplinary impact.

在M31ABSTRACTAST 0406970 CrottsDr中完成微透镜的MEGA调查。哥伦比亚大学的阿林·克罗茨将利用这一奖项完成对M31中恒星的“MEGA”引力微透镜调查的分析。 PI的团队已经为该项目建造了主要的硬件，几乎完成了总计约350个夜晚的观测，开发了软件，并开始分析数据。 到目前为止，已经发现了一些可能的微透镜事件，该小组已经开发出区分变星和微透镜事件的技术。 这项工作对天文学研究界的更广泛影响将来自于微透镜调查的副产品变星数据的存在。 此外，PI将制作用于数据分析的图像减影包，以供一般分发。 一个潜在的医疗应用的分析技术，在生产更灵敏的CT扫描检测的小肿瘤也已确定，使这项工作的多学科的影响。