Phase Cross-Correlation of the Wilkinson Microwave Anisotropy Probe Internal Linear Combination Map and Foregrounds | Zendy

Pavel D. Naselsky | Zendy; Andrey Doroshkevich | Zendy; О. В. Верходанов | Zendy

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Phase Cross-Correlation of the Wilkinson Microwave Anisotropy Probe Internal Linear Combination Map and Foregrounds

Author(s) -

Pavel D. Naselsky,

Andrey Doroshkevich,

О. В. Верходанов

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/381249

Subject(s) - multipole expansion , anisotropy , microwave , physics , linear correlation , range (aeronautics) , computational physics , phase (matter) , correlation , optics , statistics , mathematics , materials science , quantum mechanics , geometry , composite material

We present a circular cross-correlation tests for the phases of the InternalLinear Combination Map (ILC) and {\it WMAP}'s foregrounds for all K--Wfrequency bands at the range of multipoles $\ell\le 50$. We have foundsignificant deviations from the expected Poissonian statistics for the ILC andthe foregrounds phases. Our analysis shows that the low multipole range of theILC power spectrum contains some of the foregrounds residues.Comment: 4 pages, 3 figures. Submitted to ApJ

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