Dominant Multipoles in WMAP5 Mosaic Data Correlation Maps

Details Dominant Multipoles in WMAP5 Mosaic Data Correlation Maps Dominant Multipoles in WMAP5 Mosaic Data Correlation Maps

2011-08-20

arxiv.org/abs/1108.4128v1

Astrophysical Bulletin, Volume 65, Issue 4, pp.390-399, 2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages,11 figures

Scientific paper

10.1134/S1990341310040061

The method of correlation mapping on the full sphere is used to study the properties of the ILC map, as well as the dust and synchrotron background components. An anomalous correlation of the components with the ILC map in the main plane and in the poles of the ecliptic and equatorial coordinate systems was discovered. Apart from the bias, a dominant quadrupole contribution in the power spectrum of the mosaic correlation maps was found in the pixel correlation histogram. Various causes of the anomalous signal are discussed.

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