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

ast - 0094335 -博士。王云将开展一个以宇宙学研究为重点的研究和教育项目。她的研究计划集中在探索使用两个独立的宇宙学数据集，Ia型超新星（SNe Ia）和宇宙微波背景各向异性（CMB），以提供与模型无关的基本物理参数约束。超新星Ia为我们提供了一种独特的方式来探索宇宙中未知的能量含量，即暗能量。利用创新的技术，王博士将研究他们提供的暗能量状态方程的约束，作为时间的任意函数，来自当前和未来的SN Ia调查。CMB数据使我们能够探索宇宙早期的物理现象。王博士将改进和扩展她之前的工作，确定原始物质密度波动的光谱，参数化为波长的任意函数。利用新的分析方法和数值工具，她将分析当前和未来的CMB观测结果，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。王博士将利用在俄克拉何马大学的独特机会，将她的研究融入到教育活动中。她将在荣誉学院介绍一系列关于宇宙学的研究，旨在吸引优秀学生在早期进入该领域，通过大学本科生研究经验项目吸引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。她还将为研究生和高年级本科生开设宇宙学课程，并将为当地社区提供宇宙学的公开讲座。

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.