A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg 2 of SPTpol Temperature and Polarization Data
Year: 2019
Type: article
Abstract: 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 MV = 0.944 ± 0.058 ( Stat . ) ± 0.025 ( Sys . ) ; restricting to only polarization data, we find A POL = 0.906 ± 0.090 ( Stat . ) ± 0.040 ( Sys . ) . Considering statistical uncertainties alone, this is the most precise polarization-only lensing amplitude constraint to date (10.1 σ ) and is more precise than our temperature-only constraint. We perform null tests and consistency checks and find no evidence for significant contamination.
Source: The Astrophysical Journal
Authors: W. L. K. Wu, L. M. Mocanu, P. A. R. Ade, A. J. Anderson, J. E. Austermann, J. S. Avva, J. A. Beall, A. N. Bender, B. A. Benson, F. Bianchini, L. E. Bleem, J. E. Carlstrom, C. L. Chang, H. C. Chiang, R. Citron, C. Corbett Moran, T. M. Crawford, A. T. Crites, T. de Haan, M. A. Dobbs, W. Everett, J. Gallicchio, E. M. George, A. Gilbert, N. Gupta, N. W. Halverson, N. Harrington, J. W. Henning, G. C. Hilton, G. P. Holder, W. L. Holzapfel, Z. Hou, J. D. Hrubes, N. Huang, J. Hubmayr, K. D. Irwin, L. Knox, A. T. Lee, D. Li, A. Lowitz, A. Manzotti, J. J. McMahon, S. S. Meyer, M. Millea, J. Montgomery, A. Nadolski, T. Natoli, J. P. Nibarger, G. I. Noble, V. Novosad, Y. Omori, S. Padin, S. Patil, C. Pryke, C. L. Reichardt, J. E. Ruhl, B. R. Saliwanchik, J. T. Sayre, K. K. Schaffer, C. Sievers, G. Simard, G. Smecher, A. A. Stark, K. T. Story, C. Tucker, K. Vanderlinde, T. Veach, J. D. Vieira, G. Wang, N. Whitehorn, V. Yefremenko
Institutions: University of Chicago, University of Oslo, Cardiff University, Fermi National Accelerator Laboratory, National Institute of Standards and Technology, University of California, Berkeley, Argonne National Laboratory, The University of Melbourne, McGill University, University of KwaZulu-Natal, California Institute of Technology, Lawrence Berkeley National Laboratory, Canadian Institute for Advanced Research, University of Colorado Boulder, Harvey Mudd College, European Southern Observatory, University of Illinois Urbana-Champaign, SLAC National Accelerator Laboratory, Stanford University, University of California, Davis, Institut d'Astrophysique de Paris, University of Michigan, Kavli Institute for Particle Astrophysics and Cosmology, University of Minnesota, Case Western Reserve University, Yale University, School of the Art Institute of Chicago, Three-Speed Logic (Canada), Center for Astrophysics Harvard & Smithsonian, University of Toronto, University of Maryland, College Park, University of California, Los Angeles
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, U.S. Department of Energy, Gordon and Betty Moore Foundation, University of Chicago, McGill University, National Energy Research Scientific Computing Center, Office of Science, University of Colorado Boulder, Natural Sciences and Engineering Research Council of Canada, Science and Technology Facilities Council, Argonne National Laboratory
Awards: G102163711, G1055550527, G107546177, Center for Cosmological Physics, G122673668, G1286236842, G1313983767, G159716036, G1664757510, G1677143136, G1863003419, G2110534122, G2287611682, G262962599, Collaborative Research: Elements: Software: NSCI: HDR: Building An HPC/HTC Infrastructure For The Synthesis And Analysis Of Current And Future Cosmic Microwave Background Datasets, G2638771445, G2710870262, Exploring the Origin and Evolution of the Universe with the South Pole Telescope, G3075337988, Cosmological Research with the 10-meter South Pole Telescope, G3083819904, G4061288673, G419881185, G42916606, A Programme of Technology, Astrophysics and Cosmology in Cardiff 2019-22, G4501827968, RESEARCH ON ELEMENTARY PARTICLE PHYSICS, G498139845, Signatures of Cosmic Inflation: High-Resolution Studies of the Cosmic Microwave Background, G5076365615, G513797252, Physics Frontier Center at the Kavli Institute for Cosmological Physics: Pushing Cosmology to the Edge, G585908603, G6155511183, CAREER: Large focal plane array development for CMB polarization studies with the South Pole Telescope, G6652958823, G6848031779, Exploring the Time-Varying Universe at Millimeter Wavelengths with the South Pole Telescope, G6918803902, G86560745, G969889393, G993149817
OpenAlex ID: W2979899281