On the Rees-Sciama effect: maps and statistics

Abstract

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<7.

11 pages, 13 figures, to appear in MNRAS

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Cited by in corpus (9)

• Full-sky map of the ISW and Rees-Sciama effect from Gpc simulations
• Impact of Scale Dependent Bias and Nonlinear Structure Growth on the ISW Effect: Angular Power Spectra
• Towards accurate modelling of the ISW effect, the non-linear contribution
• Constraining neutrino masses with the ISW-galaxy correlation function
• The Cold Spot as a Large Void: Rees-Sciama effect on CMB Power Spectrum and Bispectrum
• Observations of the Corona Borealis supercluster with the superextended Very Small Array: further constraints on the nature of the non-Gaussian CMB cold spot
• Mixed three-point correlation functions of the nonlinear integrated Sachs-Wolfe effect and their detectability
• Ray tracing the integrated Sachs-Wolfe effect through the light cones of the Dark Energy Universe Simulation -- Full Universe Runs
• Estimating small angular scale CMB anisotropy with high resolution N-body simulations: weak lensing