Searching for non-Gaussianity in observational cosmic microwave background data

被引：10
|
作者：
Verkhodanov, O. V. [1 ]
机构：
[1] Russian Acad Sci, Special Astrophys Observ, Zelenchukskii Region 369167, Karachaevo Cher, Russia
来源：
PHYSICS-USPEKHI | 2012年 / 55卷 / 11期
关键词：
PROBE WMAP OBSERVATIONS; LARGE-SCALE STRUCTURE; INFLATIONARY UNIVERSE SCENARIO; PRIMORDIAL NON-GAUSSIANITY; DETECT NON-GAUSSIANITY; ANISOTROPY-PROBE; COLD SPOT; MINKOWSKI FUNCTIONALS; DENSITY PERTURBATIONS; COMPONENT SEPARATION;
D O I：
10.3367/UFNe.0182.201211d.1177
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Methods for searching for non-Gaussianity in the WMAP data are reviewed and the associated problems related to the cosmic microwave background (CMB) data analysis are discussed. Evidence for non-Gaussianity has been obtained by various methods and from a number of multipole ranges. Different approaches to searching for non-Gaussian CMB data are sensitive to different manifestations of non-Gaussianity, which sometimes are due to the primordial non-Gaussianity and sometimes to galactic foregrounds and/or systematic residuals remaining after the data analysis that are difficult to take into account.
引用
收藏
页码：1098 / 1114
页数：17
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