作者
KT Story, D Hanson, PAR Ade, KA Aird, JE Austermann, JA Beall, AN Bender, BA Benson, LE Bleem, JE Carlstrom, CL Chang, HC Chiang, HM Cho, R Citron, TM Crawford, AT Crites, T De Haan, MA Dobbs, W Everett, J Gallicchio, J Gao, EM George, A Gilbert, NW Halverson, N Harrington, JW Henning, GC Hilton, GP Holder, WL Holzapfel, S Hoover, Z Hou, JD Hrubes, N Huang, J Hubmayr, KD Irwin, R Keisler, L Knox, AT Lee, EM Leitch, D Li, C Liang, D Luong-Van, 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, G Smecher, AA Stark, C Tucker, K Vanderlinde, JD Vieira, G Wang, N Whitehorn, V Yefremenko, O Zahn
发表日期
2015/8/28
期刊
The Astrophysical Journal
卷号
810
期号
1
页码范围
50
出版商
IOP Publishing
简介
We present a measurement of the cosmic microwave background (CMB) gravitational lensing potential using data from the first two seasons of observations with SPTpol, the polarization-sensitive receiver currently installed on the South Pole Telescope. The observations used in this work cover 100 deg 2 of sky with arcminute resolution at 150 GHz. Using a quadratic estimator, we make maps of the CMB lensing potential from combinations of CMB temperature and polarization maps. We combine these lensing potential maps to form a minimum-variance (MV) map. The lensing potential is measured with a signal-to-noise ratio of greater than one for angular multipoles between . This is the highest signal-to-noise mass map made from the CMB to date and will be powerful in cross-correlation with other tracers of large-scale structure. We calculate the power spectrum of the lensing potential for each estimator, and we …
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KT Story, D Hanson, PAR Ade, KA Aird, JE Austermann… - The Astrophysical Journal, 2015