Journal article
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite
K Aylor, Z Hou, L Knox, KT Story, BA Benson, LE Bleem, JE Carlstrom, CL Chang, HM Cho, R Chown, TM Crawford, AT Crites, TD Haan, MA Dobbs, WB Everett, EM George, NW Halverson, NL Harrington, GP Holder, WL Holzapfel Show all
Astrophysical Journal | IOP Publishing Ltd | Published : 2017
Abstract
The Planck cosmic microwave background temperature data are best fit with a ΛCDM model that mildly contradicts constraints from other cosmological probes. The South Pole Telescope (SPT) 2540 SPT-SZ survey offers measurements on sub-degree angular scales (multipoles ) with sufficient precision to use as an independent check of the Planck data. Here we build on the recent joint analysis of the SPT-SZ and Planck data in Hou et al. by comparing ΛCDM parameter estimates using the temperature power spectrum from both data sets in the SPT-SZ survey region. We also restrict the multipole range used in parameter fitting to focus on modes measured well by both SPT and Planck, thereby greatly reducing ..
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Awarded by National Science Foundation
Funding Acknowledgements
The South Pole Telescope is supported by the National Science Foundation through grant PLR-1248097. Partial support is also provided by the NSF Physics Frontier Center grant PHY-1125897 to the Kavli Institute of Cosmological Physics at the University of Chicago, the Kavli Foundation and the Gordon and Betty Moore Foundation grant GBMF 947. B. Benson was supported by the Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. C. Reichardt acknowledges support from an Australian Research Council Future Fellowship (FT150100074). The McGill group acknowledges funding from the National Sciences and Engineering Research Council of Canada, Canada Research Chairs program, and the Canadian Institute for Advanced Research. Work at Argonne National Laboratory was supported under U.S. Department of Energy contract DE-AC02-06CH11357. This work used resources made available on the Jupiter cluster, a joint data-intensive computing project between the High Energy Physics Division and the Computing, Environment, and Fife Sciences (CELS) Directorate at Argonne National Laboratory. We thank G. Addison for pointing out the importance of the aberration correction.