Ancient and Recent Galaxy Mergers

古代和现代的星系合并

• 批准号: 9221423
• 负责人: Francois Schweizer
• 金额: $ 12.66万
• 依托单位: Carnegie Institution of Washington
• 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: 1993-08-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9221423&HistoricalAwards=false
• 关键词: Ancient; Recent; Galaxy; Mergers

Collisions and mergers seem to have played a major role in determining the shapes and dynamics of present-day galaxies. A few mergers are still occurring and offer valuable clues to past evolutionary processes. Dating ancient mergers has become feasible because of the discovery of merger signatures such as ripples, tails, X-structures, and oddly rotating cores in earlytype galaxies. The research to be carried out in this grant will be a program of observational research aimed at studying the process of collisions and mergers of galaxies. The Principal Investigator is regarded as a world leader in this research area.

碰撞和合并似乎在决定当今星系的形状和动力学方面发挥了重要作用。 一些合并仍在发生，并为过去的进化过程提供了宝贵的线索。 由于在早期星系中发现了合并特征，例如波纹、尾部、X结构和奇怪的旋转核心，因此对古代合并的年代测定变得可行。 这笔赠款将进行的研究将是一项观测研究计划，旨在研究星系碰撞和合并的过程。 首席研究员被认为是该研究领域的世界领先者。