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CMB Anisotropies Produced by Nonlinear Voids

Published online by Cambridge University Press:  25 May 2016

Nobuyuki Sakai ,
Jun'Ichi Yokoyama  and
Naoshi Sugiyama
Nobuyuki Sakai
Affiliation:
Yukawa Institute for Theoretical Physics, Kyoto University Kyoto 606-8502, Japan
Jun'Ichi Yokoyama
Affiliation:
Yukawa Institute for Theoretical Physics, Kyoto University Kyoto 606-8502, Japan
Naoshi Sugiyama
Affiliation:
Department of Physics, Kyoto University Kyoto 606-8502, Japan

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Although the CMB anisotropy is an important probe of primordial fluctuations at recombination, which carries information on the cosmological parameters as well as the nature of dark matter, CMB photons are also affected gravitationally by nonlinear structures between recombination and the present epoch. In this paper, using Thompson & Vishniac's model [1], we investigate the effect of a void network on the CMB anisotropy in the Einstein-de Sitter background. In particular, we estimate both the Rees-Sciama effect [2] and the gravitational lensing effect (see, e.g., [3]).

Type
II. Cosmic Microwave Background Radiation
Information
Symposium - International Astronomical Union , Volume 183: Cosmological Parameters and the Evolution of the Universe , 1999 , pp. 106
Copyright
Copyright © Kluwer 1999 

References

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