Cross-correlation of WMAP7 and the WISE Full Data Release
Abstract
We measured the cross-correlation of the Wilkinson Microwave Anisotropy Probe (WMAP) 7 year temperature map and the full sky data release of the Wide-field Infrared Survey Explorer (WISE) galaxy map. Using careful mapmaking and masking techniques we find a positive cross-correlation signal. The results are fully consistent with a Lambda-CDM Universe, although not statistically significant. Our findings are robust against changing the galactic latitude cut from |b|>10 to |b|>20 and no color dependence was detected when we used WMAP Q, V or W maps. We confirm higher significance correlations found in the preliminary data release. The change in significance is consistent with cosmic variance.
Cite
@article{arxiv.1301.0475,
title = {Cross-correlation of WMAP7 and the WISE Full Data Release},
author = {András Kovács and István Szapudi and Benjamin R. Granett and Zsolt Frei},
journal= {arXiv preprint arXiv:1301.0475},
year = {2015}
}
Comments
5 pages, 4 figures, Accepted for publication in MNRAS Letters