Abstract
Using N-body cosmological simulations, we compute the derivative of the potential along the line of sight in order to estimate the integrated Sachs–Wolfe (ISW) effect and the Rees–Sciama (R-S) effect on CMB maps. By using the same seed to generate the initial conditions and changing the spatial and mass resolution we study the impact of numerical resolution on the predicted results. As expected, the ISW is affected less than the R-S. We compute the angular power spectrum and compare it with the corresponding one for the CMB fluctuations and find that the ISW plus R-S power spectrum is well below the level of CMB fluctuations. This is however affected by the relative small size of our simulation. Future and larger simulations will be able to probe larger scales and to higher redshifts.
Chapter PDF
Similar content being viewed by others
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Diego, J.M., Martínez-González, E., Yepes, G. (2010). N-body Simulations of the Rees-Sciama Effect. In: Diego, J., Goicoechea, L., González-Serrano, J., Gorgas, J. (eds) Highlights of Spanish Astrophysics V. Astrophysics and Space Science Proceedings. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11250-8_41
Download citation
DOI: https://doi.org/10.1007/978-3-642-11250-8_41
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-11249-2
Online ISBN: 978-3-642-11250-8
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)