Cosmic Background Isotropy Measurements from the South Pole

来自南极的宇宙背景各向同性测量

• 批准号: 8716458
• 负责人: Jeffrey Peterson
• 金额: $ 2.48万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-15 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716458&HistoricalAwards=false
• 关键词: Cosmic; Background; Isotropy; Measurements; South

This project will attempt to measure the isotropy of the cosmic microwave background radiation (CMBR) from South Pole Station. The measurements will be made by two different instruments working at different angular size scales and frequencies and using different detection techniques. One of the instruments will make measurements on an angular scale of 20 minutes at a frequency of 90 GHz using a bolometer detector. The other instrument will measure angular scales of 4 degrees at a frequency of 19 GHz using a ruby maser detector. The instruments have the sensitivity to set new upper limits on the anisotropy of the CMBR, and if they do so it will be necessary to reformulate the current cosmological theories. A detection of anisotropy would be an important confirmation of the current theories. This is probably the most important cosmological measurement that can be made, and the South Pole is the best place on earth to make it. The institution and the proposer are outstandingly qualified to perform the experiment. The proposer has developed the instruments with funding from a Presidential Young Investigator grant especially awarded for that purpose.

这个项目将试图测量宇宙的各向同性 南极站微波背景辐射（CMBR） 测量将由两种不同的仪器进行， 在不同的角度大小尺度和频率下， 不同的检测技术。 其中一种仪器将使 在20分钟的角标度上以 90 GHz，使用测辐射热计探测器。 另一个工具将 在19 GHz频率下测量4度角标度， 红宝石脉泽探测器 这些仪器具有设定新的上限的灵敏度， CMBR的各向异性，如果他们这样做， 重新阐述当前的宇宙学理论。 的检测 各向异性将是电流的重要确认 理论 这可能是迄今为止 南极是地球上最好的地方 了 该机构和提议人都非常有资格， 进行实验。 提案人制定了 由总统青年调查员资助的仪器 特别为此目的而颁发的补助金。