Collaborative Research: Galaxy Growth in Different Environments in the Early Universe from z=1.9 to 3.5

合作研究：早期宇宙不同环境下的星系生长（从z=1.9到3.5）

• 批准号: 1614668
• 负责人: Casey Papovich
• 金额: $ 11.81万
• 依托单位: Texas A&M 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: 2016-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1614668&HistoricalAwards=false
• 关键词: Collaborative; Research; Galaxy; Growth; Different

The team will assemble optical and infrared observations of hundreds of thousands of galaxies. The observations pick out galaxies about 10 to 12 billion years back in time. This period is known to be one of hectic change for galaxies. The team will study how these changes depend on whether a galaxy has many neighbors, or no neighbors at all. This important topic could not be studied before because not enough observations were available. The team will release their assembled catalog to the public. Senior team members will train junior members. The team will give public talks, offer residential workshops to teachers and develop a three-dimensional show for a children's science museum.In a tour de force, the team will combine data from five deep, wide-area galaxy surveys that include both photometry and integral-field-unit spectroscopy. They will use the combined data to study galaxy evolution over the full range of galactic environments at redshifts z ~ 1.9 to 3.5. These are key redshifts for galaxy evolution, as they probe the assembly of massive galaxies, the peaks in star formation and black-hole accretion, and the collapse of the largest proto-clusters of galaxies. The team will amass photometry for about 600,000 galaxies and spectroscopy for about 260,000 galaxies. Using this dataset, the team will conduct statistically meaningful analyses that were heretofore impossible.

该团队将组装数十万星系的光学和红外观测。 这些观察结果在时间前约10到120亿年。 该时期已知是星系的忙碌变化之一。 团队将研究这些变化如何取决于银河系是否有许多邻居，还是根本没有邻居。 由于没有足够的观察结果，因此无法研究这个重要的主题。 团队将向公众发布他们的组装目录。 高级团队成员将培训初级成员。 该团队将进行公开谈判，为教师提供住宅研讨会，并为儿童科学博物馆开发三维节目。 他们将使用合并的数据在红移Z〜1.9至3.5的全部银河环境中研究星系演化。 这些是用于星系演化的关键红移，因为它们探测了大型星系的组装，恒星形成和黑洞积聚的峰以及最大的星系原始原始群体的崩溃。 该团队将用于约60万星系的光度法和大约260,000个星系的光谱法。 使用此数据集，该团队将进行统计上有意义的分析，而这些分析是不可能的。