SIMBAD references

2006MNRAS.369L..27R - Mon. Not. R. Astron. Soc., 369, L27-L31 (2006/June-2)

The microwave sky and the local Rees-Sciama effect.


Abstract (from CDS):

The microwave sky shows unexpected features at the largest angular scales, among them the alignments of the dipole, quadrupole and octopole. Motivated by recent X-ray cluster studies, we investigate the possibility that local structures at the 100 h–1 Mpc scale could be responsible for such correlations. These structures give rise to a local Rees-Sciama contribution to the microwave sky that may amount to ΔT/T ∼ 10–5 at the largest angular scales. We model local structures by a spherical overdensity (Lemaître-Tolman-Bondi model) and assume that the Local Group is falling toward the centre. We superimpose the local Rees-Sciama effect on a statistically isotropic, Gaussian sky. As expected, we find alignments among low multipoles, but a closer look reveals that they do not agree with the type of correlations revealed by the data.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): cosmic microwave background - large-scale structure of Universe

Simbad objects: 6

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