Weak gravitational lensing of the CMB

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Jun 2006Embargo end date: 01 Jan 2006 English Publisher:Elsevier BVJournal:Physics Reports, volume 429, pages 1-65 (issn: 0370-1573,

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Authors: Lewis, Antony; Challinor, Anthony;

doi: 10.1016/j.physrep.2006.03.002 , 10.48550/arxiv.astro-ph/0601594

arXiv: astro-ph/0601594

Weak gravitational lensing of the CMB

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Abstract

Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves. The lensing signal can also be used to help constrain cosmological parameters and lensing mass distributions. We review the origin and calculation of these effects. Topics include: lensing in General Relativity, the lensing potential, lensed temperature and polarization power spectra, implications for constraining inflation, non-Gaussian structure, reconstruction of the lensing potential, delensing, sky curvature corrections, simulations, cosmological parameter estimation, cluster mass reconstruction, and moving lenses/dipole lensing.

Accepted by Phys. Rept.; 92 pages, PDF fully hyperlinked

Related Organizations

Institute of Astronomy
Russian Federation
University of Cambridge
United Kingdom
Cavendish Laboratory
United Kingdom

Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics (astro-ph), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, General Relativity and Quantum Cosmology

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