Abstract
We discuss some special problems of the CMB polarization. We present computations of the statistics of polarization field around high peaks of the cosmic microwave background anisotropy. We studied the correlated and uncorrelated with the anisotropy parts of polarization in the vicinity of isolated peaks of anisotropy in order to demonstrate how these peaks determine the structure of the polarization fields. We have shown that the level of cross-correlation between anisotropy and polarization increases in σ times around σ-heigh isolated peaks of anisotropy. Such a peak forms the specific shape of polarization around itself. The polarization of the cosmic microwave background correlated with 3σ-peaks of anisotropy is formed mainly between the cross-levels 1.5σ and 2.5σ. This polarization has a local maximum ∼ 30 ÷45% around 3σ-peaks and looks like “rings” around the peaks. This specific structure of the polarization field would be effective for further investigation of the primordial signal and noise in the maps of anisotropy and polarization of the cosmic microwave background. Also we discuss the classification of singular points of the vector field of the CMB polarization where polarization vanishes.
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Naselsky, P., Novikov, D.I., Novikov, I.D. (2001). Some problems of the CMB polarization. In: Sánchez, N.G. (eds) Current Topics in Astrofundamental Physics: The Cosmic Microwave Background. NATO Science Series, vol 562. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0748-1_10
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DOI: https://doi.org/10.1007/978-94-010-0748-1_10
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