作者
D Hanson, S Hoover, A Crites, PAR Ade, KA Aird, JE Austermann, JA Beall, AN Bender, BA Benson, LE Bleem, JJ Bock, JE Carlstrom, CL Chang, HC Chiang, HM Cho, A Conley, TM Crawford, T De Haan, MA Dobbs, W Everett, J Gallicchio, J Gao, EM George, NW Halverson, N Harrington, JW Henning, GC Hilton, GP Holder, WL Holzapfel, JD Hrubes, N Huang, J Hubmayr, KD Irwin, R Keisler, L Knox, AT Lee, E Leitch, D Li, C Liang, D Luong-Van, G Marsden, JJ McMahon, J Mehl, SS Meyer, L Mocanu, TE Montroy, T Natoli, JP Nibarger, V Novosad, S Padin, C Pryke, CL Reichardt, JE Ruhl, BR Saliwanchik, JT Sayre, KK Schaffer, B Schulz, G Smecher, AA Stark, KT Story, C Tucker, K Vanderlinde, JD Vieira, MP Viero, G Wang, V Yefremenko, O Zahn, M Zemcov, (SPTpol Collaboration)
发表日期
2013/10/4
期刊
Physical review letters
卷号
111
期号
14
页码范围
141301
出版商
American Physical Society
简介
Gravitational lensing of the cosmic microwave background generates a curl pattern in the observed polarization. This “-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 modes, using first-season data from the polarization-sensitive receiver on the South Pole Telescope (SPTpol). We construct a template for the lensing -mode signal by combining -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 modes measured directly by SPTpol, finding a nonzero correlation at significance. The correlation has an amplitude and scale dependence consistent with theoretical …
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D Hanson, S Hoover, A Crites, PAR Ade, KA Aird… - Physical review letters, 2013