Estimation of Signal and Noise Parameters from CMB Polarization Observations

2000/12/14 by P. Naselsky, D. Novikov, Naselsky, P. +5
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0012319

9 pages, 3 figures, submitted to Proceedings of IAU Symposium 201

arxiv created 2000/12/14 · arxiv updated 2009/12/01

Abstract

We propose a technique for determination of the spectral parameters of the cosmological signal and pixel noise using observational data on CMB polarization without any additional assumptions. We introduce the notion of so called crossing points in the observational maps and derive the theoretical dependence of the total number of crossing points at different level of the polarization. Finally, we use the statistics of the signal in the vicinities of the singular points, where the polarization of the pure CMB vanishes to correct the final result.

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