Polarization-assisted WMAP-NVSS Cross Correlation

Details Polarization-assisted WMAP-NVSS Cross Correlation Polarization-assisted WMAP-NVSS Cross Correlation

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1059...31l&link_type=abstract

RELATIVISTIC ASTROPHYSICS: 5th Sino-Italian Workshop on Relativistic Astrophysics. AIP Conference Proceedings, Volume 1059, pp.

Astronomy and Astrophysics

Astrophysics

1

Compactification And Four-Dimensional Models, Particle-Theory And Field-Theory Models Of The Early Universe, Origin And Formation Of The Universe, Einstein-Maxwell Spacetimes, Spacetimes With Fluids, Radiation Or Classical Fields, Dark Matter, Dark Energy, Molecular And Chemical Processes And Interactions

Scientific paper

Cross-correlation of Cosmic Microwave Background (CMB) and large scale structure survey is one of the powerful tools for constraining the nature of dark energy through the so-called Integrated Sachs-Wolfe effect. However, CMB from higher redshift is the dominated noise of this effect. Here, we present the CMB polarization-assisted method to suppress this noise. We apply this method to cross-correlation of the microwave sky observed by Wilkinson Microwave Anisotropy Probe (WMAP) with the radio source catalog compiled by NRAO VLA Sky Survey (NVSS) to study the efficiency of the noise suppression. We find that the spurious correlation is reduced about 2-7%.

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