Cross-correlation of WMAP7 and the WISE full data release

András Kovács, I. Szapudi, Benjamin R. Granett, Z. Frei

Research output: Contribution to journalArticle

18 Citations (Scopus)

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 galaxy map. Using careful map-making and masking techniques we find a positive crosscorrelation signal. The results are fully consistent with a λCDM universe, although not statistically significant. Our findings are robust against changing the Galactic latitude cut from |b| > 10° to |b| > 20° and no colour 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.

Original languageEnglish
JournalMonthly Notices of the Royal Astronomical Society: Letters
Volume431
Issue number1
DOIs
Publication statusPublished - 2013

Fingerprint

Wide-field Infrared Survey Explorer
cross correlation
Microwave Anisotropy Probe
anisotropy
probe
masking
sky
universe
galaxies
color
temperature
microwave

Keywords

  • Cosmic background radiation
  • Cosmology: observations
  • Dark energy
  • Infrared: galaxies
  • Large-scale structure of Universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Cross-correlation of WMAP7 and the WISE full data release. / Kovács, András; Szapudi, I.; Granett, Benjamin R.; Frei, Z.

In: Monthly Notices of the Royal Astronomical Society: Letters, Vol. 431, No. 1, 2013.

Research output: Contribution to journalArticle

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