作者
WLK Wu, Laura-Monica Mocanu, Peter AR Ade, AJ Anderson, Jason E Austermann, JS Avva, James A Beall, AN Bender, Bradford A Benson, F Bianchini, Lindsey E Bleem, John E Carlstrom, CL Chang, HC Chiang, R Citron, C Corbett Moran, Thomas M Crawford, Abigail T Crites, T De Haan, Matthew Adam Dobbs, W Everett, J Gallicchio, Elizabeth M George, A Gilbert, N Gupta, Nils W Halverson, N Harrington, Jason W Henning, Gene C Hilton, Gilbert P Holder, William Laird Holzapfel, Z Hou, J Dana Hrubes, N Huang, Johannes Hubmayr, Kent D Irwin, L Knox, AT Lee, D Li, A Lowitz, A Manzotti, JJ McMahon, SS Meyer, Marius Millea, J Montgomery, A Nadolski, T Natoli, JP Nibarger, GI Noble, Valentine Novosad, Y Omori, S Padin, S Patil, C Pryke, Christian L Reichardt, JE Ruhl, BR Saliwanchik, James T Sayre, Kathryn K Schaffer, C Sievers, G Simard, G Smecher, Anthony A Stark, Kyle T Story, Carole Tucker, K Vanderlinde, T Veach, Joaquin D Vieira, Gang Wang, N Whitehorn, V Yefremenko
发表日期
2019/10/14
期刊
The Astrophysical Journal
卷号
884
期号
1
页码范围
70
出版商
IOP Publishing
简介
We present a measurement of the cosmic microwave background lensing potential using 500 deg 2 of 150 GHz data from the SPTpol receiver on the South Pole Telescope. The lensing potential is reconstructed with signal-to-noise per mode greater than unity at lensing multipoles L≲ 250, using a quadratic estimator on a combination of cosmic microwave background temperature and polarization maps. We report measurements of the lensing potential power spectrum in the multipole range of 100< L< 2000 from sets of temperature-only (T), polarization-only (POL), and minimum-variance (MV) estimators. We measure the lensing amplitude by taking the ratio of the measured spectrum to the expected spectrum from the best-fit Λ cold dark matter model to the Planck 2015 TT+ low P+ lensing data set. For the minimum-variance estimator, we find ${A} _ {\mathrm {MV}}= 0.944\pm 0.058 (\mathrm {Stat}.)\pm 0.025 …
学术搜索中的文章
WLK Wu, LM Mocanu, PAR Ade, AJ Anderson… - The Astrophysical Journal, 2019