Collaborative Research: Large scale structure with 21 cm intensity mapping

合作研究：具有 21 厘米强度映射的大规模结构

• 批准号: 1211781
• 负责人: Peter Timbie
• 金额: $ 28.88万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1211781&HistoricalAwards=false
• 关键词: Collaborative; Research; Large; scale; structure

This collaborative program will conduct a multi-year project to make precise measurements of the large scale structure of the universe using recently developed 21 cm intensity mapping techniques. The program will create spectral maps of 500 square degrees, spanning the frequency range 700 to 900 MHz (0.58 z 1). The principal goal is to measure the baryon acoustic oscillation feature at these redshifts in an innovative program which is complementary to, and competitive with, optical galaxy surveys. The acoustic scale provides a standard ruler which measures the Universe's expansion, providing an observational handle on Dark Energy.Broader impacts of the work include training of graduate student, and outreach to the public via a planetarium show called "The Hydrogen Sky" produced in English, French and Chinese, and distributed worldwide. Additional outreach activities include tours of the night sky through the Universe in the Park program in Wisconsin and teaching electronics to under-represented groups through CMU's Summer Academy for Math and Science.

这一合作计划将实施一个多年项目，利用最近开发的21厘米强度测绘技术对宇宙的大尺度结构进行精确测量。该程序将创建500平方度的光谱地图，覆盖700至900 MHz(0.58z1)的频率范围。主要目标是在一个创新的计划中测量这些红移处的重子声振荡特征，该计划是对光学星系调查的补充，也是与之竞争的。声学天平提供了测量宇宙膨胀的标准尺子，提供了对暗能量的观测控制。这项工作的广泛影响包括培养研究生，以及通过一部名为《氢气天空》的天文馆节目向公众宣传，该节目由英语、法语和中文制作，并在全球范围内发行。其他外展活动包括通过威斯康星州公园中的宇宙计划参观夜空，以及通过CMU夏季数学和科学学院向代表不足的群体教授电子学。