Phase cross-correlation of the WMAP ILC map and foregrounds
Astrophysics
2009-11-10 v1
Abstract
We present a circular cross-correlation tests for the phases of the Internal Linear Combination Map (ILC) and {\it WMAP}'s foregrounds for all K--W frequency bands at the range of multipoles . We have found significant deviations from the expected Poissonian statistics for the ILC and the foregrounds phases. Our analysis shows that the low multipole range of the ILC power spectrum contains some of the foregrounds residues.
Cite
@article{arxiv.astro-ph/0310542,
title = {Phase cross-correlation of the WMAP ILC map and foregrounds},
author = {P. D. Naselsky and A. G. Doroshkevich and O. V. Verkhodanov},
journal= {arXiv preprint arXiv:astro-ph/0310542},
year = {2009}
}
Comments
4 pages, 3 figures. Submitted to ApJL