Journal article
Consistency of cosmic microwave background temperature measurements in three frequency bands in the 2500-square-degree SPT-SZ survey
LM Mocanu, TM Crawford, K Aylor, BA Benson, LE Bleem, JE Carlstrom, CL Chang, H-M Cho, R Chown, AT Crites, T de Haan, MA Dobbs, WB Everett, EM George, NW Halverson, NL Harrington, JW Henning, GP Holder, WL Holzapfel, Z Hou Show all
Journal of Cosmology and Astroparticle Physics | IOP Publishing | Published : 2019
Abstract
We present an internal consistency test of South Pole Telescope (SPT) measurements of the cosmic microwave background (CMB) temperature anisotropy using three-band data from the SPT-SZ survey. These measurements are made from observations of ~ 2500 °2 of sky in three frequency bands centered at 95, 150, and 220 GHz. We combine the information from these three bands into six semi-independent estimates of the CMB power spectrum (three single-frequency power spectra and three cross-frequency spectra) over the multipole range 650<ℓ<3000. We subtract an estimate of foreground power from each power spectrum and evaluate the consistency among the resulting CMB-only spectra. We determine that the si..
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Grants
Awarded by National Science Foundation
Funding Acknowledgements
The South Pole Telescope program is supported by the National Science Foundation through grant PLR-1248097. Partial support is also provided by the NSF Physics Frontier Center grant PHY-0114422 to the Kavli Institute of Cosmological Physics at the University of Chicago, the Kavli Foundation, and the Gordon and Betty Moore Foundation through grant GBMF#947 to the University of Chicago. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, and the resources of the University of Chicago Computing Cooperative (UC3), supported in part by the Open Science Grid, NSF grant NSF PHY 1148698. CR acknowledges support from an Australian Research Council's Future Fellowship (FT150100074). Some of the results in this paper have been derived using the HEALPix [18] package. We acknowledge the use of the Legacy Archive for Microwave Background Data Analysis (LAMBDA). Support for LAMBDA is provided by the NASA Office of Space Science.