Arcminute Cosmology Bolometric Array Receiver

弧分宇宙学测辐射热阵列接收器

• 批准号: 0091840
• 负责人: William Holzapfel
• 金额: $ 90万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0091840&HistoricalAwards=false
• 关键词: Arcminute; Cosmology; Bolometric; Array; Receiver

0091840HolzapfelThe proposed work will continue a study of the cosmic microwave background (CMB) anisotropies and the Sunyaev-Zel'dovich effect (SZE) with the ACBAR (Arcminute Cosmology Bolometer Array Receiver) instrument, operating at South Pole station. Because of its stable atmosphere and extremely low water vapor, the South Pole is the best known terrestrial site from which to carry out this program of observations. The instrument itself is a sixteen element bolometer array, operating at 0.03 deg K, designed specifically for observations of CMB anisotropy and the SZE. It will operate in atmospheric windows spanning millimeter to submillimeter wavelengths; extending the spectral range over which observations of anisotropies are made is necessary to separate cosmic microwave background signals from foreground contamination. The combination of sensitive detectors, high angular resolution, and broad frequence coverage the instrument will advance cosmology research on several fronts. The project will determine cluster peculiar velocities (the motion of galaxy clusters with respect to the rest frame of the CMB), extend measurements of primordial CMB anisotropies to small angular scales, and serve as a natural complement to balloon and satellite missions at larger angular scales. ***

0091840HOLZAPFEL THE拟议的工作将继续研究宇宙微波背景（CMB）各向异性和Sunyaev-Zel'Dovich效应（SZE），并使用ACBAR（ACBAR（Arcminute Cosmology Bologology Bologeromology Bologeromology阵列计）仪器仪器，在南杆站运行。 由于其稳定的气氛和极低的水蒸气，南极是最著名的陆地部位，可以从中执行此观测计划。 该仪器本身是一个16个元件验证仪阵列，在0.03 k k下运行，专为观察CMB各向异性和SZE而设计。它将在跨越毫米至亚毫米波长的大气窗户上运行；扩展了对各向异性观测的频谱范围，对于将宇宙微波背景信号与前景污染分开是必要的。敏感探测器，高角度分辨率和广泛的频率覆盖仪器的组合将在几个方面推进宇宙学研究。 该项目将确定集群特殊的速度（与CMB的其余框架相对于Galaxy簇的运动），将原始CMB各向异性的测量扩展到小角度尺度，并作为在较大的角度尺度下的气球和卫星任务的自然补体。 ***