U.S.-Brazil Cooperative Science Program: Making Maps of theLow-Frequency Sky Brightness (Galactic Emmission Maps at Long-Wavelength)

美国-巴西合作科学计划：制作低频天空亮度图（长波长银河发射图）

• 批准号: 9204217
• 负责人: George Smoot
• 金额: $ 1.8万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9204217&HistoricalAwards=false
• 关键词: U.S.; Brazil; Cooperative; Science; Program

This award form the U.S.-Brazil Cooperative Science Program will support collaborative research in atmospheric sciences to be carried out by Dr. George F. Smoot of the University of California, Berkeley and Dr. Thyrso Villela of the Instituto Nacional Pesquisas Espaciais (INPE) at San Jose dos Campos, Brazil. The project will map the southern sky as part of a program to make high quality maps of galactic emission. This collaboration combines the acknowledged expertise of he Berkeley group in studying cosmic background emission with the access to territory and high gain equipment afforded by the Brazilian side. The project will make spectral measurements of the differential and absolute sky brightness over the 400 to 1000 MHz range first with 15 to 10 degree angular resolution and then at higher resolution. These measurements will study the spectrum of galactic, extragalactic and cosmic radiation. The study will provide the basis for the next generation of high-precision measurements of the very low-frequency spectrum of the cosmic microwave background radiation (CMBR) and allow the reinterpretation of low-frequency CMBR spectrum measurements made over the past decade. ***//

这项来自美国-巴西合作科学计划的奖项将支持由加州大学的乔治·f·斯穆特博士进行的大气科学合作研究，伯克利和巴西圣荷西坎波斯国家农业科学研究所（INPE）的Thyrso Villela博士。该项目将绘制南部天空地图，作为制作高质量星系辐射地图计划的一部分。这项合作将伯克利小组在研究宇宙背景辐射方面公认的专业知识与巴西方面提供的领土和高增益设备相结合。该项目将首先以15至10度角分辨率对400至1000兆赫范围内的差差和绝对天空亮度进行光谱测量，然后以更高的分辨率进行测量。这些测量将研究银河系、河外和宇宙辐射的光谱。该研究将为下一代宇宙微波背景辐射（CMBR）低频频谱的高精度测量提供基础，并允许对过去十年中进行的低频CMBR频谱测量进行重新解释。* * * / /