Anisotropy of the Cosmic Microwave Background Radiation on Large and Medium Angular Scales

大中角尺度上宇宙微波背景辐射的各向异性

• 批准号: 9316535
• 负责人: Stephan Meyer
• 金额: $ 72.21万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-01 至 1998-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316535&HistoricalAwards=false
• 关键词: Anisotropy; Cosmic; Microwave; Background; Radiation

Abstract 9316535 Meyer This project will lead to the development, for flight on a long- duration Antarctic circum-polar balloon, of a telescope to measure the cosmic microwave background radiation (CMBR) anisotropy. The instrument will be mounted on the upper surface of the balloon in order to eliminate interference from radiation being scattered into the aperture by the balloon and connecting structures such as cables and it is expected that the systematic errors will be less than one millionth of a kelvin. The CMBR will be measured at five frequencies from 150 to 630 GHz and on angular scales from 0.5 to 3 degrees. The instrument will not be flown in Antarctica until after it has been tested in the U.S. The project will be partially supported by NASA and will be funded by the Office of Polar Programs and the Division of Astronomical Sciences at NSF. The collaboration includes investigators from four US universities, NASA Goddard Space Flight Center and the Danish Space Research Institute. ***

摘要9316535 Meyer该项目将导致研制一种用于长时间南极绕极气球飞行的望远镜，以测量宇宙微波背景辐射的各向异性。该仪器将安装在气球的上表面，以消除气球和电缆等连接结构将辐射散射到孔内的干扰，预计系统误差将小于开尔文的百万分之一。CMBR将在150到630 GHz的五个频率和0.5到3度的角度尺度上进行测量。该仪器在美国进行测试后才会在南极洲飞行。该项目将得到美国国家航空航天局的部分支持，并将由美国国家科学基金会的极地计划办公室和天文科学部提供资金。这项合作包括来自四所美国大学、NASA戈达德太空飞行中心和丹麦空间研究所的研究人员。***