On the sources of the late integrated Sachs-Wolfe effect

Abstract

In some scenarios, the peculiar gravitational potential of linear and mildly nonlinear structures depends on time and, as a result of this dependence, a late integrated Sachs-Wolfe effect appears. Here, an appropriate formalism is used which allows us to improve on the analysis of the spatial scales and locations of the main cosmological inhomogeneities producing this effect. The study is performed in the framework of the currently preferred flat model with cosmological constant, and it is also developed in an open model for comparisons. Results from this analysis are used to discuss the contribution of Great Attractor-like objects, voids, and other structures to the CMB anisotropy.

25 pages, 4 figures, accepted for publication in New Astronomy

References in corpus (3)

• Determination of Inflationary Observables by Cosmic Microwave Background Anisotropy Experiments
• Large-Angle Cosmic Microwave Background Anisotropies in an Open Universe
• The Small Scale Integrated Sachs-Wolfe Effect

Cited by in corpus (5)

• On the Rees-Sciama effect: maps and statistics
• The Integrated Sachs-Wolfe Effect in Interacting Dark Matter-Dark Energy Models
• CMB maps lensed by cosmological structures: Simulations and statistical analysis
• CMB anisotropy: deviations from Gaussianity due to non-linear gravity
• Non-Gaussian Signatures in the Lens Deformations of the CMB Sky. A New Ray-Tracing Procedure