English

Comparison of the Sachs-Wolfe Effect for Gaussian and Non-Gaussian Fluctuations

General Relativity and Quantum Cosmology 2009-12-30 v1 Astrophysics

Abstract

A consequence of non-Gaussian perturbations on the Sachs-Wolfe effect is studied. For a particular power spectrum, predicted Sachs-Wolfe effects are calculated for two cases: Gaussian (random phase) configuration, and a specific kind of non-Gaussian configuration. We obtain a result that the Sachs-Wolfe effect for the latter case is smaller when each temperature fluctuation is properly normalized with respect to the corresponding mass fluctuation δMM(R){\delta M\over M}(R). The physical explanation and the generality of the result are discussed.

Keywords

Cite

@article{arxiv.gr-qc/9208011,
  title  = {Comparison of the Sachs-Wolfe Effect for Gaussian and Non-Gaussian Fluctuations},
  author = {Jong H. Kung},
  journal= {arXiv preprint arXiv:gr-qc/9208011},
  year   = {2009}
}

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16 pages