Revealing the Physics and Dynamics of the Unique Galaxy Cluster Merger Abell 2146

揭示独特星系团合并 Abell 2146 的物理和动力学

• 批准号: 1517954
• 负责人: Lindsay King
• 金额: $ 29.23万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1517954&HistoricalAwards=false
• 关键词: Revealing; Physics; Dynamics; Unique; Galaxy

The aim of the proposal is to conduct cutting-edge simulations of Abell 2146, which consists of two merging, massive galaxy clusters that are viewed close to the plane of the sky soon after their first collision. Dark matter dominates the merger's total mass, and its distribution has been revealed. The normal baryonic matter in the merger is hot, and its distribution is known from X-ray measurements. Due to the merger's favorable viewing angle and youth, these distributions differ markedly. This provides a rare opportunity to use the proposed simulations to place strong constraints on the merger's material and dynamics. As an added bonus, the simulations will investigate why this cluster merger lacks radio emission, in stark contrast to its ubiquity in other mergers.The PI will continue her established efforts to recruit local high school students from underrepresented groups into her institution. She will also develop a series of software-tools workshops for students and faculty at her institution.

该提案的目的是对阿贝尔2146进行最先进的模拟，该星系团由两个合并的大质量星系团组成，在第一次碰撞后不久就可以在天空平面附近看到。暗物质主导了合并的总质量，其分布已经被揭示。合并中的正常重子物质是热的，其分布可以从X射线测量中得知。由于合并的有利视角和年轻，这些分布有显着差异。这提供了一个难得的机会，使用拟议的模拟，把合并的材料和动态的强有力的约束。作为一个额外的奖励，模拟将调查为什么这个集群合并没有无线电发射，这与它在其他合并中的普遍存在形成鲜明对比。PI将继续她的既定努力，从代表性不足的群体中招募当地高中生进入她的机构。她还将为她所在机构的学生和教师开发一系列软件工具研讨会。