ARRAY FOR MICROWAVE BACKGROUND ANISOTROPY: OBSERVATIONS, DATA ANALYSIS, AND RESULTS FOR SUNYAEV-ZEL'DOVICH EFFECTS
ARRAY FOR MICROWAVE BACKGROUND ANISOTROPY: OBSERVATIONS, DATA ANALYSIS, AND RESULTS FOR SUNYAEV-ZEL'DOVICH EFFECTS
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微波背景各向异性阵列：SUNYAEV-ZELDOVICH 效应的观测、数据分析和结果
DOI：
10.1088/0004-637x/694/2/1619
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Wu J
中科院分区：
文献类型：
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作者：
Wu J
我们目前的观测，分析和第一年的操作阵列微波背景各向异性（AMiBA），一个干涉实验，旨在通过测量宇宙微波背景（CMB）研究宇宙学的结果。AMiBA是第一个在3 mm处工作的CMB干涉仪，已经报告了成功的结果，目前有7个直径为60 cm的密集天线，合成分辨率约为6 '。在2007年期间，AMiBA探测到了六个星系团的苏尼亚耶夫-泽尔多维奇效应，红移为0.091 z 0.322。采用开关源切换的观测策略，最大限度地减少了电子偏移和接地拾取的影响。行星被用来测试AMiBA的观测能力，并校准从相关器时滞数据到vibrations的转换。给出了数据分析的详细形式。我们总结了我们的早期测试，包括行星和类星体的观测，并提出了图像，能见度配置文件，估计的中心坐标，大小和SZE星系团的振幅。科学的影响进行了总结。我们还讨论了结果中可能的系统性影响。
We present observations, analysis, and results for the first-year operation of Array for Microwave Background Anisotropy (AMiBA), an interferometric experiment designed to study cosmology via the measurement of cosmic microwave background (CMB). AMiBA is the first CMB interferometer operating at 3 mm to have reported successful results, currently with seven close-packed antennas of 60 cm diameter giving a synthesized resolution of around 6'. During 2007, AMiBA detected the Sunyaev–Zel'dovich effects (SZEs) of six galaxy clusters at redshift 0.091⩽ z⩽ 0.322. An observing strategy with on–off-source switching is used to minimize the effects from electronic offset and ground pickup. Planets were used to test the observational capability of AMiBA and to calibrate the conversion from correlator time-lag data to visibilities. The detailed formalism for data analysis is given. We summarize our early tests including observations of planets and quasars, and present images, visibility profiles, the estimated central coordinates, sizes, and SZE amplitudes of the galaxy clusters. Scientific implications are summarized. We also discuss possible systematic effects in the results.