Testing Gaussianity in the WMAP data of OT foreground reduced map

Details Testing Gaussianity in the WMAP data of OT foreground reduced map Testing Gaussianity in the WMAP data of OT foreground reduced map

2009-07-03

arxiv.org/abs/0907.0527v1

Int.J.Mod.Phys.A24:1664-1668,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages

Scientific paper

10.1142/S0217751X09045194

A considerable effort has recently gone into the study of Gaussianity of cosmic microwave background (CMB) data. Among such attempts, there is one with two non-Gaussianity indicators, proposed by the authors, and used in a search for significant deviation from Gaussianity in the WMAP internal linear combination (ILC) and in the single frequency WMAP maps with the KQ75 mask. Here we extend and complement these results by performing a similar analysis for the de Oliveira-Costa and Tegmark (OT) WMAP three-year $KQ75$ masked map, in which the foreground is reduced through a different statistical cleaning procedure.

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