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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Detection of B-mode polarization in the cosmic microwave background with data from the south pole telescope
Physical Review Letters, Volume 111, No. 14, Article 141301, Year 2013
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Description
Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This "B-mode" signal provides a measure of the projected mass distribution over the entire observable Universe and also acts as a contaminant for the measurement of primordial gravity-wave signals. In this Letter we present the first detection of gravitational lensing B modes, using first-season data from the polarization-sensitive receiver on the South Pole Telescope (SPTpol). We construct a template for the lensing B-mode signal by combining E-mode polarization measured by SPTpol with estimates of the lensing potential from a Herschel-SPIRE map of the cosmic infrared background. We compare this template to the B modes measured directly by SPTpol, finding a nonzero correlation at 7.7σ significance. The correlation has an amplitude and scale dependence consistent with theoretical expectations, is robust with respect to analysis choices, and constitutes the first measurement of a powerful cosmological observable. © 2013 American Physical Society.
Authors & Co-Authors
Hanson, Duncan
Unknown Affiliation
Hoover, S.
Unknown Affiliation
Crites, A. T.
Unknown Affiliation
Ade, Peter A.R.
Unknown Affiliation
Aird, K. A.
Unknown Affiliation
Austermann, Jason E.
Unknown Affiliation
Beall, James A.
Unknown Affiliation
Bender, A. N.
Unknown Affiliation
Benson, Bradford A.
Unknown Affiliation
Bleem, Lindsey E.
Unknown Affiliation
Bock, James J.
Unknown Affiliation
Carlstrom, John E.
Unknown Affiliation
Chang, Clarence L.
Unknown Affiliation
Chiang, H. Cynthia
Unknown Affiliation
Cho, Hsiaomei Sherry
Unknown Affiliation
Conley, Alexander J.
Unknown Affiliation
Crawford, Thomas M.
Unknown Affiliation
de Haan, Tijmen D.
Unknown Affiliation
Dobbs, Matthew Adam
Unknown Affiliation
Everett, W. B.
Unknown Affiliation
Gallicchio, Jason
Unknown Affiliation
Gao, Jiangsong
Unknown Affiliation
George, E. M.
Unknown Affiliation
Halverson, Nils W.
Unknown Affiliation
Harrington, N. L.
Unknown Affiliation
Henning, J. W.
Unknown Affiliation
Hilton, Gene C.
Unknown Affiliation
Holder, Gilbert P.
Unknown Affiliation
Holzapfel, William Laird
Unknown Affiliation
Hrubes, J. D.
Unknown Affiliation
Huang, N.
Unknown Affiliation
Hubmayr, Johannes
Unknown Affiliation
Irwin, Kent D.
Unknown Affiliation
Keisler, Ryan
Unknown Affiliation
Knox, Lloyd E.
Unknown Affiliation
Lee, Adrian Tae Jin
Unknown Affiliation
Leitch, Erik M.
Unknown Affiliation
Li, Dale
Unknown Affiliation
Liang, C.
Unknown Affiliation
Luong-Van, D.
Unknown Affiliation
Marsden, Gaelen
Unknown Affiliation
McMahon, Jeffrey John
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Mehl, J.
Unknown Affiliation
Meyer, S. S.
Unknown Affiliation
Mocanu, L.
Unknown Affiliation
Montroy, Thomas E.
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Natoli, T.
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Nibarger, John P.
Unknown Affiliation
Novosad, V.
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Padin, S.
Unknown Affiliation
Pryke, Clement L.
Unknown Affiliation
Reichardt, Christian L.
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Ruhl, John E.
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Saliwanchik, Benjamin R.B.
Unknown Affiliation
Sayre, J. T.
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Schaffer, K. K.
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Schulz, Bernhard
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Smecher, G.
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Stark, Anthony A.
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Story, Kyle T.
Unknown Affiliation
Tucker, Carole E.
Unknown Affiliation
Vanderlinde, K.
Unknown Affiliation
Vieira, Joaquin D.
Unknown Affiliation
Viero, Marco P.
Unknown Affiliation
Wang, Gensheng
Unknown Affiliation
Yefremenko, V.
Unknown Affiliation
Zahn, Oliver
Unknown Affiliation
Zemcov, Michael B.
Unknown Affiliation
Statistics
Citations: 68
Authors: 68
Affiliations: 23
Identifiers
Doi:
10.1103/PhysRevLett.111.141301
ISSN:
00319007
e-ISSN:
10797114