Dark Matter Halo Substructure: A Key to Fundamental Physics and Galaxy Formation

暗物质晕亚结构：基础物理和星系形成的关键

• 批准号: 0602122
• 负责人: Andrew Zentner
• 金额: $ 6.7万
• 依托单位: Zentner Andrew R
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-10-01 至 2007-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0602122&HistoricalAwards=false
• 关键词: Dark; Matter; Halo; Substructure; Key

AST-0602122Zentner, AndrewDr. Zentner is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to carry out a program of research and education at the Kavli Institute for Cosmological Physics at the University of Chicago. The formation of galaxies, the nature of dark matter and the physics of the inflationary epoch remain cosmological puzzles. The explosion of recent and forthcoming data from numerous observational programs places a burden on theorists for testable predictions. Studying dark matter halo structure and substructure leads to profound connections among these fields. Dr. Zentner will undertake detailed theoretical studies of the formation of dark matter halos, particularly halo substructure and satellite galaxies, that will yield fundamental improvements in our understanding of galaxy formation and that will constrain dark matter properties and inflation. These studies aim to make definitive predictions for the properties of dark matter subhalos and galaxy observables in the standard cold dark matter cosmology and selected alternative models. The primary tools for these studies are: (1) high-resolution cosmological numerical simulations of halo assembly; (2) targeted simulations of subhalo and galaxy evolution within larger systems; and (3) analytic models of halo merging and substructure evolution. These studies have several revolutionary aspects, including resolving phase-space-limited cores in self-consistent simulations of alternative dark matter and improving the basic framework of halo merger statistics that forms the foundation of most galaxy formation models.Dr. Zentner will also undertake an educational program at Chicago's Young Women's Leadership Charter School (YWLCS) aimed at encouraging urban young women to pursue careers in science. In collaboration with YWLCS faculty, Dr. Zentner will introduce astrophysical sciences into the YWLCS curriculum at two grade levels, primarily in the fall semesters. In the spring, Dr. Zentner will mentor small groups of YWLCS students in intensive astronomy- and astrophysics-related term projects.

AST-0602122 Zentner，AndrewDr. Zentner被授予NSF天文学和天体物理学博士后奖学金，在芝加哥大学的Kavli宇宙物理研究所开展研究和教育计划。星系的形成、暗物质的性质和暴胀时代的物理学仍然是宇宙学的难题。来自众多观测项目的最近和即将到来的数据的爆炸性增长给理论家带来了可检验的预测的负担。研究暗物质晕结构和亚结构导致这些领域之间的深刻联系。Zentner博士将对暗物质晕的形成进行详细的理论研究，特别是晕子结构和卫星星系，这将从根本上改善我们对星系形成的理解，并将限制暗物质的性质和膨胀。这些研究旨在对标准冷暗物质宇宙学和选定的替代模型中的暗物质暗晕和星系观测值的性质进行明确的预测。这些研究的主要工具是：（1）晕组装的高分辨率宇宙学数值模拟;（2）较大系统内的次晕和星系演化的有针对性的模拟;（3）晕合并和子结构演化的分析模型。这些研究有几个革命性的方面，包括解决相空间有限的核心在自洽模拟的替代暗物质和改善的基本框架晕合并统计，形成了大多数星系形成模型的基础。Zentner博士还将承担一个教育计划，在芝加哥的年轻女性的领导特许学校（YWLCS），旨在鼓励城市年轻女性追求科学事业。Zentner博士将与YWLCS教师合作，在两个年级将天体物理科学引入YWLCS课程，主要是在秋季学期。Zentner将指导YWLCS学生的小团体进行密集的天文学和天体物理学相关的学期项目。