CMB Polarization Data and Galactic Foregrounds: Estimation of Cosmological Parameters

Details CMB Polarization Data and Galactic Foregrounds: Estimation of Cosmological Parameters CMB Polarization Data and Galactic Foregrounds: Estimation of Cosmological Parameters

1999-11-13

arxiv.org/abs/astro-ph/9911243v1

Astronomy and Astrophysics

Astrophysics

6 pages, submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.2000.03364.x

We estimate the accuracy with which various cosmological parameters can be determined from the CMB temperature and polarization data when various galactic unpolarized and polarized foregrounds are included and marginalized using the multi-frequency Wiener filtering technique. We use the specifications of the future CMB missions MAP and PLANCK for our study. Our results are in qualitative agreement with earlier results obtained without foregrounds, though the errors in most parameters are higher because of degradation of the extraction of polarization signal in the presence of foregrounds.

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