Spin needlets for cosmic microwave background polarization data analysis
نویسندگان
چکیده
منابع مشابه
Cosmic microwave background polarization analysis
With polarization of the cosmic microwave background (CMB) now detected, and confirmed by several independent experiments, the next goal is to characterise accurately its statistical properties. In these lecture notes we review the physical motivation for pursuing CMB polarization, and the basic statistical properties of the polarization fields. We then discuss some of the key aspects of the an...
متن کاملCosmic Microwave Background Polarization
Cosmic microwave background (CMB) anisotropy is our richest source of cosmological information; the standard cosmological model was largely established thanks to study of the temperature anisotropies. By the end of the decade, the Planck satellite will close this important chapter and move us deeper into the new frontier of polarization measurements. Numerous ground–based and balloon–borne expe...
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Polarization induced by cosmological scalar perturbations leads to a typical anisotropy pattern, which can best be analyzed in Fourier domain. This allows one to unambiguously distinguish cosmological signal of polarization from other foregrounds and systematics, as well as from polarization induced by non-scalar perturbations. The precision with which polarization and cross-correlation power s...
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The CMB radiation is completely characterized by its temperature anisotropy and polarization in each direction in the sky. Today, studies of the temperature anisotropies in the CMB have provided strong constraints on many of the cosmological parameters. However, for precision cosmology we still need to consider the polarization information of the CMB to break some of the degenerecies that exist...
متن کاملThe Polarization of the Cosmic Microwave Background
We summarize the physical mechanism by which the cosmic microwave background acquires a small degree of polarization. We discuss the imprint left by gravitational waves and the use of polarization as a test of the inflationary paradigm. We discuss some physical processes that affect the cosmic microwave background polarization after recombination, such as gravitational lensing and the reionizat...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2008
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.78.123533