NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: FINAL MAPS AND RESULTS
NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: FINAL MAPS AND RESULTS
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DOI：
10.1088/0067-0049/208/2/20
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发表时间：
2013-10-01
影响因子：
8.7
通讯作者：
Wright, E. L.
中科院分区：
文献类型：
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作者：
Bennett, C. L.;Larson, D.;Wright, E. L.
我们目前的最终九年的地图和基本结果，从威尔金森微波各向异性探测器（WMAP）的使命。对时间顺序数据的完整九年分析提供了实验的最新特征和校准。我们还提供了新的九年全天空温度图，处理，以减少有效光束的不对称性。温度和偏振天空图检查，以分离宇宙微波背景（CMB）的各向异性从前景发射，这两种类型的信号进行了详细的分析。我们提供了新的点源目录以及新的扩散和点源前景遮罩。一个更新的模板去除过程用于宇宙学分析，新的前景拟合进行，并提出了新的前景减少CMB地图。我们现在实施最佳C-1加权来计算温度角功率谱。WMAP的使命导致了一个高度约束的Delta CDM宇宙学模型，其精确和准确的参数与其他宇宙学测量的主机一致。当WMAP数据与更精细尺度的CMB，重子声波振荡和哈勃常数测量相结合时，我们发现大爆炸核合成得到了很好的支持，并且没有令人信服的证据表明中微子种类的非标准数量（N-eff = 3.84 +/- 0.40）。模型拟合还意味着宇宙的年龄为t（0）= 13.772 +/- 0.059 Gyr，拟合的哈勃常数为H-0 = 69.32 +/- 0.80 km s（-1）Mpc（-1）。通货膨胀也得到支持：波动是绝热的，具有高斯随机相位; WMAP团队早先报告的标量光谱指数偏离1的检测现在具有很高的统计意义（n（s）= 0.9608 +/- 0.0080）;宇宙接近平坦/欧几里得（Ω（k）= -0.0027（-0.0038）（+0.0039））。总的来说，WMAP使命已经导致宇宙学参数体积减少了68，000倍，对于标准的六参数Delta CDM模型，仅基于CMB数据。对于包含张量的模型，允许的七参数体积已减少了117，000倍。其他的宇宙学观测结果与CMB的预测雅阁，合并后的数据进一步减少了宇宙学参数的体积。由于没有显著的异常和足够的拟合优度，暴胀平坦Delta CDM模型及其基于WMAP数据的精确和准确的参数是宇宙学的标准模型。
We present the final nine-year maps and basic results from the Wilkinson Microwave Anisotropy Probe (WMAP) mission. The full nine-year analysis of the time-ordered data provides updated characterizations and calibrations of the experiment. We also provide new nine-year full sky temperature maps that were processed to reduce the asymmetry of the effective beams. Temperature and polarization sky maps are examined to separate cosmic microwave background (CMB) anisotropy from foreground emission, and both types of signals are analyzed in detail. We provide new point source catalogs as well as new diffuse and point source foreground masks. An updated template-removal process is used for cosmological analysis; new foreground fits are performed, and new foreground reduced CMB maps are presented. We now implement an optimal C-1 weighting to compute the temperature angular power spectrum. The WMAP mission has resulted in a highly constrained Delta CDM cosmological model with precise and accurate parameters in agreement with a host of other cosmological measurements. When WMAP data are combined with finer scale CMB, baryon acoustic oscillation, and Hubble constant measurements, we find that big bang nucleosynthesis is well supported and there is no compelling evidence for a non-standard number of neutrino species (N-eff = 3.84 +/- 0.40). The model fit also implies that the age of the universe is t(0) = 13.772 +/- 0.059 Gyr, and the fit Hubble constant is H-0 = 69.32 +/- 0.80 km s(-1) Mpc(-1). Inflation is also supported: the fluctuations are adiabatic, with Gaussian random phases; the detection of a deviation of the scalar spectral index from unity, reported earlier by the WMAP team, now has high statistical significance (n(s) = 0.9608 +/- 0.0080); and the universe is close to flat/Euclidean (Omega(k) = -0.0027(-0.0038)(+0.0039)). Overall, the WMAP mission has resulted in a reduction of the cosmological parameter volume by a factor of 68,000 for the standard six-parameter Delta CDM model, based on CMB data alone. For a model including tensors, the allowed seven-parameter volume has been reduced by a factor 117,000. Other cosmological observations are in accord with the CMB predictions, and the combined data reduces the cosmological parameter volume even further. With no significant anomalies and an adequate goodness of fit, the inflationary flat Delta CDM model and its precise and accurate parameters rooted in WMAP data stands as the standard model of cosmology.