The Low Surface Brightness Sky with the 48-Lens Dragonfly Telephoto Array

使用 48 镜头蜻蜓长焦阵列拍摄低表面亮度天空

• 批准号: 1613582
• 负责人: Pieter van Dokkum
• 金额: $ 57.78万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-08-01 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1613582&HistoricalAwards=false
• 关键词: Low; Surface; Brightness; Sky; 48

The team will use their array of telephoto lenses, Dragonfly, to observe the dim starlight from galaxies. Such dim optical signals have never been observed before. The innovative array is located in New Mexico and operated from Connecticut or Ontario, Canada. The observations will be used to test models and simulations of the dim starlight. The team will continue to develop industrial links with Canon, a lens manufacturer. Undergraduates and graduate students will gain hands-on experience with instrumentation, software and observations.The team will use their purpose-built array to observe the low-surface-brightness stellar emission from galaxies. Their goals are to study (1) the outskirts of nearby galaxies, (2) the faint dwarf galaxies around luminous spiral galaxies, and (3) the ultra diffuse galaxies in the Coma Cluster and Virgo Cluster.

该团队将使用他们的长焦镜头阵列Dragonfly来观察来自星系的暗淡星光。 这种微弱的光学信号以前从未被观察到过。 该创新阵列位于新墨西哥州，从加拿大康涅狄格州或安大略运营。 这些观测结果将用于测试暗淡星光的模型和模拟。 该团队将继续发展与透镜制造商佳能的产业联系。 本科生和研究生将获得仪器，软件和观测的实践经验。该团队将使用他们的专用阵列来观察星系的低表面亮度恒星发射。 他们的目标是研究（1）附近星系的外围，（2）发光螺旋星系周围的暗淡矮星系，以及（3）后发座星系团和室女座星系团中的超弥漫星系。