CMB anisotropy science: a review

Abstract The cosmic microwave background (CMB) provides us with our most direct observational window to the early universe. Observations of the temperature and polarization anisotropies in the CMB have played a critical role in defining the now-standard cosmological model. In this contribution we re...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union
Main Author: Challinor, Anthony
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 2012
Subjects:
Online Access:http://dx.doi.org/10.1017/s1743921312016663
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921312016663
Description
Summary:Abstract The cosmic microwave background (CMB) provides us with our most direct observational window to the early universe. Observations of the temperature and polarization anisotropies in the CMB have played a critical role in defining the now-standard cosmological model. In this contribution we review some of the basics of CMB science, highlighting the role of observations made with ground-based and balloon-borne Antarctic telescopes. Most of the ingredients of the standard cosmological model are poorly understood in terms of fundamental physics. We discuss how current and future CMB observations can address some of these issues, focusing on two directly relevant for Antarctic programmes: searching for gravitational waves from inflation via B -mode polarization, and mapping dark matter through CMB lensing.