CAREER: Galaxy Evolution in the Cosmic Web: RESOLVEing the Missing and Invisible

职业：宇宙网中的星系演化：解决失踪和看不见的问题

• 批准号: 0955368
• 负责人: Sheila Kannappan
• 金额: $ 79.51万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-08-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0955368&HistoricalAwards=false
• 关键词: CAREER; Galaxy; Evolution; Cosmic; Web

Dr. Kannappan proposes to lead and carry out a project that will advance our understanding of cosmology by investigating the 'missing baryons' problem, so named since most of the normal baryonic matter predicted from early-universe cosmology is not seen at the present epoch. She will investigate this problem by conducting the RESOLVE (Resolved Spectroscopy Of a Local VolumE) survey. RESOLVE will produce 2-D optical and radio spectroscopy of a carefully selected sample of approximately 1500 galaxies in the nearby cosmic web. When the survey is completed it will be the first to:- Directly determine the fundamental distribution of internal velocities within the sample, i.e. the 'velocity function' of the sample- Perform an analysis of disk growth and survival in relation to merging and cosmic structure- Put a new type of constraint on the distribution of missing baryons through a self-consistent mass census which will be analyzed in conjunction with star formation patterns and numerical simulationsDr. Kannappan will use the data from RESOLVE to train a new generation of scientists in multiple areas of astronomy including: spectroscopy, radio astronomy, and survey data handling. RESOLVE data will be made available on the web where it will be used in data-driven activities that are geared toward projects for high school and undergraduate students. Additionally, Dr. Kannappan will develop an astronomy curriculum that is aligned to the North Carolina science standards. This work is in collaboration with current teachers and is based on her experience in the Teach for America program, a program that typically targets minority and/or low-income communities.

Kannappan博士建议通过调查“丢失的Baryons”问题来领导和执行一个项目，以提高我们对宇宙学的理解，因此命名是因为在目前的时期看不到早期的宇宙宇宙学预测的大多数正常的Baryonic物质。她将通过进行解决方案（本地卷的解决光谱）调查来调查这个问题。 Resolve将在附近的宇宙网络中精心选择的大约1500个星系的样本产生2D光谱和无线电光谱。调查完成后，将是第一个： - 直接确定样品内部速度的基本分布，即样品的“速度函数” - 对磁盘增长和合并和宇宙结构的分析 - 对与自我cons的分布相关的合并和宇宙结构的生存分析，该模式与自我群体的分布相关，并将其与数量的分析相关联，该模式是分析的。模拟。 Kannappan将使用Resolve中的数据来培训新一代科学家在多个天文学领域，包括：光谱，射电天文学和调查数据处理。解决数据将在网络上提供，该数据将用于用于高中和本科生项目的数据驱动活动。此外，Kannappan博士将开发一项天文学课程，该课程符合北卡罗来纳州科学标准。这项工作与现任教师合作，并基于她在《 Teach For America计划》中的经验，该计划通常针对少数群体和/或低收入社区。