CAREER: Model-Independent Constraints on Fundamental Physics Using Cosmological Data

职业：使用宇宙学数据对基础物理进行与模型无关的约束

• 批准号: 0094335
• 负责人: Yun Wang
• 金额: $ 30万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0094335&HistoricalAwards=false
• 关键词: CAREER; Model; Independent; Constraints; Fundamental

AST-0094335Dr. Yun Wang will carry out a program of research and education that focuses on studies in cosmology. Her research plan is centered on exploring the use of two independent cosmological data sets, the type Ia supernovae (SNe Ia) and the cosmic microwave background anisotropy (CMB) to provide model-independent constraints on fundamental physical parameters. SNe Ia provide us with a unique probe into the unknown energy content of the universe, the dark energy. Using innovative techniques, Dr. Wang will study the constraints they provide on the equation of state of the dark energy, as an arbitrary function of time, from current and future SN Ia surveys. CMB data allow us to probe the physics in the very early universe. Dr. Wang will improve and expand on her previous work on the determination of the spectrum of the primordial matter density fluctuations, parameterized as an arbitrary function of wavelength. Using new analytical methods and numerical tools, she will analyze current and future CMB observations that will provide observational guidance for constructing the correct inflationary model to describe physics in the early universe. Dr. Wang will take advantage of the unique opportunities at the University of Oklahoma in integrating her research into educational activities. She will involve undergraduates in research by presenting a series on cosmology at the honors college, designed to attract outstanding students to the field at an early age, by engaging students from the honors college and other universities in research through the University's Research Experiences for Undergraduates program, and by including undergraduate students in her research team. She will also develop a cosmology course for graduate and upper level undergraduate students, and will offer public lectures in cosmology to the local community.

AST-0094335博士。王云将开展一项以宇宙学研究为重点的研究和教育计划。 她的研究计划集中于探索使用两个独立的宇宙学数据集，即 Ia 型超新星 (SNe Ia) 和宇宙微波背景各向异性 (CMB)，为基本物理参数提供独立于模型的约束。 SNe Ia 为我们提供了对宇宙未知能量——暗能量——的独特探索。 王博士将利用创新技术，从当前和未来的 SN Ia 巡天研究它们对暗能量状态方程（作为时间的任意函数）提供的约束。 CMB 数据使我们能够探索极早期宇宙的物理现象。 王博士将改进和扩展她之前关于确定原始物质密度波动光谱的工作，参数化为波长的任意函数。 她将使用新的分析方法和数值工具，分析当前和未来的宇宙微波背景观测结果，这将为构建正确的暴胀模型来描述早期宇宙的物理现象提供观测指导。王博士将利用俄克拉荷马大学独特的机会将她的研究融入教育活动中。 她将通过在荣誉学院展示一系列关于宇宙学的课程，旨在吸引优秀学生从小就进入该领域，通过大学的本科生研究经验项目让荣誉学院和其他大学的学生参与研究，并将本科生纳入她的研究团队，从而让本科生参与研究。 她还将为研究生和高年级本科生开发宇宙学课程，并向当地社区提供宇宙学公开讲座。