Collaborative Research: Large Scale Structure with 21cm Intensity Mapping

合作研究：21cm强度映射的大型结构

• 批准号: 1211777
• 负责人: Jeffrey Peterson
• 金额: $ 40.77万
• 依托单位: Carnegie-Mellon University
• 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 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1211777&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.

这个合作项目将进行一个多年的项目，使用最近开发的21厘米强度测绘技术对宇宙的大尺度结构进行精确测量。该计划将创建500平方度的频谱图，涵盖700至900 MHz （0.58 z 1）的频率范围。主要目标是在一个创新的项目中测量这些红移的重子声学振荡特征，该项目与光学星系调查互补，并与之竞争。声学尺度提供了测量宇宙膨胀的标准标尺，提供了对暗能量的观测处理。这项工作的更广泛影响包括研究生的培训，以及通过一个名为“氢气天空”的天文馆节目向公众宣传，该节目以英、法、中三种语言制作，并在全球发行。其他的拓展活动包括在威斯康辛州的公园项目中通过宇宙的夜空之旅，以及通过CMU的夏季数学与科学学院向代表性不足的群体教授电子学。