On the Rees-Sciama effect:: maps and statistics

被引:15
作者
Puchades, N. [1 ]
Fullana, M. J.
Arnau, J. V.
Saez, D.
机构
[1] Univ Valencia, Dept Astron & Astrophys, E-46100 Burjassot, Spain
[2] Univ Politecn Valencia, Inst Matemat Multidisciplinar, E-46022 Valencia, Spain
[3] Univ Valencia, Dept Matemat Aplicada, E-46100 Burjassot, Spain
关键词
methods : N-body simulations; methods : numerical; cosmic microwave background; cosmology theory; large-scale structure of Universe;
D O I
10.1111/j.1365-2966.2006.10607.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Small maps of the Rees-Sciama (RS) effect are simulated by using an appropriate N-body code and a certain ray-tracing procedure. A method designed for the statistical analysis of cosmic microwave background (CMB) maps is applied to study the resulting simulations. These techniques, recently proposed - by our team - to consider lens deformations of the CMB, are adapted to deal with the RS effect. This effect and the deviations from Gaussianity associated to it seem to be too small to be detected in the near future. This conclusion follows from our estimation of both the RS angular power spectrum and the RS reduced n-direction correlation functions for n <= 6.
引用
收藏
页码:1849 / 1858
页数:10
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