The Optical Design and Characterization of the Microwave Anisotropy Probe
The Optical Design and Characterization of the Microwave Anisotropy Probe
复制标题
DOI：
10.1086/346078
复制
发表时间：
2003-01
期刊：
影响因子：
--
通讯作者：
L. Page;C. Jackson;C. Barnès;C. Bennett;M. Halpern;G. Hinshaw;N. Jarosik;A. Kogut;M. Limon-M
中科院分区：
文献类型：
--
作者：
L. Page;C. Jackson;C. Barnès;C. Bennett;M. Halpern;G. Hinshaw;N. Jarosik;A. Kogut;M. Limon-M
MAP卫星目前已进入轨道，其主要目标是在20至100千兆赫之间的5个频段制作高保真偏振敏感的全天空地图。从这些图中，我们将描述宇宙微波背景（CMB）的各向异性以及银河系和河外辐射在角尺度上的特性，范围从有效光束大小到小于0。°23，到满天。MAP是一种差分微波辐射计。两个背靠背的形状偏移格里高利望远镜为两个镜面对称阵列提供10个波纹馈送。我们描述了发射前光学系统的设计和特性，将光学模型与测量结果进行了比较，并考虑了多种可能的系统误差来源。
The primary goal of the MAP satellite, now in orbit, is to make high-fidelity polarization-sensitive maps of the full sky in five frequency bands between 20 and 100 GHz. From these maps we will characterize the properties of the cosmic microwave background (CMB) anisotropy and Galactic and extragalactic emission on angular scales ranging from the effective beam size, less than 0.°23, to the full sky. MAP is a differential microwave radiometer. Two back-to-back shaped offset Gregorian telescopes feed two mirror symmetric arrays of 10 corrugated feeds. We describe the prelaunch design and characterization of the optical system, compare the optical models to the measurements, and consider multiple possible sources of systematic error.