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Paper: CMB Polarimetry
Volume: 449, Astronomical Polarimetry 2008: Science from Small to Large Telescopes
Page: 446
Authors: Aumont, J.
Abstract: The study of the Cosmic Microwave Background radiation (CMB) enters a new era. Since precision measurements of the CMB temperature anisotropies by the WMAP satellite experiment, the challenge is now to extract informations from the polarization anisotropies, several orders of magnitude fainter than the ones in temperature. As a consequence of this weakness, contamination from polarized Galactic emissions will limit the measurement of this signal, which constitutes a wealth of information on the early-Universe physics. This review starts by giving a brief introduction to CMB and its polarization physics, formalism and on the benefits of its precision measurement for cosmology. We will give the measurement status of CMB polarization and present the PLANCK experiment, designed to provide the best measurement of CMB polarization in a near future.
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