First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations:: Preliminary maps and basic results
First-year Wilkinson Microwave Anisotropy Probe (WMAP) observations:: Preliminary maps and basic results
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DOI：
10.1086/377253
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发表时间：
2003-09-01
影响因子：
8.7
通讯作者：
Weiland, JL
中科院分区：
文献类型：
--
作者：
Bennett, CL;Halpern, M;Weiland, JL
我们提出了全天空微波地图在五个频段（23-94 GHz）从威尔金森微波各向异性探测器（WMAP）的第一年的天空调查。校准误差小于0.5%，低系统误差水平是很好的规定。利用多频数据将宇宙微波背景（CMB）从前景中分离出来。这些星图与7度半高宽宇宙背景探测器（COBE）的星图一致。我们报告更精确，但一致的，偶极和四极的值。CMB各向异性服从高斯统计，
We present full-sky microwave maps in five frequency bands (23-94 GHz) from the Wilkinson Microwave Anisotropy Probe (WMAP) first-year sky survey. Calibration errors are less than 0.5%, and the low systematic error level is well specified. The cosmic microwave background (CMB) is separated from the foregrounds using multifrequency data. The sky maps are consistent with the 7degrees FWHM Cosmic Background Explorer (COBE) maps. We report more precise, but consistent, dipole and quadrupole values. The CMB anisotropy obeys Gaussian statistics with -58