Bispectrum and the trispectrum of the Ostriker-Vishniac effect

被引：17

作者：

Castro, PG ^{[1
]}

机构：

[1] Univ Oxford, Oxford OX1 3RH, England

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.67.123001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present analytical expressions for the Fourier analogue of the cosmic microwave background three-point and four-point correlation functions, the spatial bispectrum and trispectrum, of the Ostriker-Vishniac effect in the linear and mildly nonlinear regime. Through this systematic study, we illustrate a technique to tackle the calculation of such statistics making use of the effects of its small-angle and vectorlike properties through the Limber approximation. Finally we discuss its configuration dependence and detectability in the context of Gaussian theories for the currently favored flat LambdaCDM cosmology.

引用

页数：19

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