期刊
ASTROPARTICLE PHYSICS
卷 34, 期 8, 页码 591-594出版社
ELSEVIER
DOI: 10.1016/j.astropartphys.2010.12.009
关键词
Cosmic microwave background
资金
- NSF [AST-0807564]
- NASA [NNX09AC89G, NNX07AG89G]
- DOE Oil [FG02-95ER40899]
- DFG
On large angular scales (greater than or similar to 60), the two-point angular correlation function of the temperature of the cosmic microwave background (CMB), as measured (outside of the plane of the Galaxy) by the Wilkinson Microwave Anisotropy Probe, shows significantly lower large-angle correlations than expected from the standard inflationary cosmological model. Furthermore, when derived from the full CMB sky, the two lowest cosmologically interesting multipoles, the quadrupole (l = 2) and the octopole (l = 3), are unexpectedly aligned with each other. Using randomly generated full-sky and cut-sky maps, we investigate whether these anomalies are correlated at a statistically significant level. We conclusively demonstrate that, assuming Gaussian random and statistically isotropic CMB anisotropies, there is no statistically significant correlation between the missing power on large angular scales in the CMB and the alignment of the (= 2 and l = 3 multipoles. The chance to measure the sky with both such a lack of large-angle correlation and such an alignment of the low multipoles is thus quantified to be below 10(-6). (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据