Collaborative Proposal: Do We Need Something Beyond Cold Dark Matter?

合作提案：我们是否需要冷暗物质之外的东西？

• 批准号: 1410012
• 负责人: Fabio Governato
• 金额: $ 23.93万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-15 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1410012&HistoricalAwards=false
• 关键词: Collaborative; Proposal; Do; Need; Something

The investigators in the collaborative proposal will make measurements of nearby dwarf galaxies and compare them with theoretical simulations to constrain the nature of Dark Matter in the universe. Broader impacts of the work include training of graduate students and a postdoctoral researcher, and engagement of under-represented groups toward careers in science. Visualizations of dark matter simulations will be created for public outreach. The program aims to measure chemical and dynamical structure of stars within the Milky Way's dwarf spheroidal satellites and compare the measurements to simulations, in order to infer the spatial distribution of dark matter in the least luminous galaxies. They will compare observational results directly to the first suite of cosmological/ hydrodynamical simulations that resolve actual observables - stellar positions, velocities, metallicities, and ages. The generation of mock observational catalogs from simulations will allow dark matter and galaxy formation models to be compared to data strictly in terms of observables. The wider ranging impact of this project is to test the standard cold dark matter cosmological model.

在这项合作计划中，研究人员将对附近的矮星系进行测量，并将其与理论模拟进行比较，以限制宇宙中暗物质的性质。这项工作的更广泛影响包括培养研究生和博士后研究员，以及让代表不足的群体投身科学事业。将为公众宣传创建暗物质模拟的可视化。该计划旨在测量银河系矮小球状卫星内恒星的化学和动力学结构，并将测量结果与模拟结果进行比较，以推断最不明亮星系中暗物质的空间分布。他们将直接将观测结果与第一套宇宙学/流体动力学模拟相比较，这些模拟可以解决实际的观测数据--恒星的位置、速度、金属度和年龄。通过模拟生成模拟观测星表将允许将暗物质和星系形成模型与数据严格按照可观测数据进行比较。该项目更广泛的影响是测试标准冷暗物质宇宙模型。