Is cosmology consistent
Is cosmology consistent
复制标题
宇宙学是否一致
DOI：
10.1103/physrevd.65.123001
复制
发表时间：
2001
影响因子：
5
通讯作者：
M. Zaldarriaga
中科院分区：
文献类型：
--
作者：
Xiaomin Wang;M. Tegmark;M. Zaldarriaga
我们对最新的CMB测量（包括BOOMERaNG，DASI，Maxima和CBI）进行了详细的分析，无论是单独还是与其他宇宙学数据集一起，例如，星系团和莱曼阿尔法森林。我们首先解决的问题，是否CMB数据是内部一致的校准和光束的不确定性考虑在内，进行一系列的统计检验。有一些小的警告，我们的答案是肯定的，我们将所有数据压缩到一组24个带功率与相关的协方差矩阵和窗口函数。然后，我们计算联合约束的11个参数的“标准”的绝热暴胀宇宙学模型。最佳拟合模型通过了一系列物理一致性检查，基本上与目前所有可用的宇宙学数据一致。除了对宇宙物质预算的严格限制与BOOMERaNG，DASI和Maxima团队的严格限制一致外，我们还获得了最重的中微子质量范围为0.04 - 4.2 eV，以及迄今为止对重力波的最严格限制（以及对轻微红倾的偏好）有利于“小场”膨胀模型。
We perform a detailed analysis of the latest CMB measurements (including BOOMERaNG, DASI, Maxima and CBI), both alone and jointly with other cosmological data sets involving, e.g., galaxy clustering and the Lyman Alpha Forest. We first address the question of whether the CMB data are internally consistent once calibration and beam uncertainties are taken into account, performing a series of statistical tests. With a few minor caveats, our answer is yes, and we compress all data into a single set of 24 bandpowers with associated covariance matrix and window functions. We then compute joint constraints on the 11 parameters of the ``standard'' adiabatic inflationary cosmological model. Out best fit model passes a series of physical consistency checks and agrees with essentially all currently available cosmological data. In addition to sharp constraints on the cosmic matter budget in good agreement with those of the BOOMERaNG, DASI and Maxima teams, we obtain a heaviest neutrino mass range 0.04-4.2 eV and the sharpest constraints to date on gravity waves which (together with preference for a slight red-tilt) favors ``small-field'' inflation models.