A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite
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 ${\deg }^{2}$ SPT-SZ survey offers measurements on sub-degree angular scales (multipoles $650\leqslant {\ell...
Published in: | The Astrophysical Journal |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Language: | unknown |
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2022
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Online Access: | http://www.osti.gov/servlets/purl/1419642 https://www.osti.gov/biblio/1419642 https://doi.org/10.3847/1538-4357/aa947b |
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79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS Aylor, K. Hou, Z. Knox, L. Story, K. T. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H-M. Chown, R. Crawford, T. M. Crites, A. T. Haan, T. de Dobbs, M. A. Everett, W. B. George, E. M. Halverson, N. W. Harrington, N. L. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Keisler, R. Lee, A. T. Univ. of California, Berkeley, CA . Department of Physics Lawrence Berkeley National Lab. , Berkeley, CA . Physics Division Leitch, E. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Luong-Van, D. Univ. of Chicago, IL Marrone, D. P. Univ. of Arizona, Tucson, AZ . Steward Observator McMahon, J. J. Univ. of Michigan, Ann Arbor, MI . Department of Physics Meyer, S. S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics, Department of Astronomy and Astrophysics, Department of Physics, and Enrico Fermi Institute Millea, M. Univ. of California, Davis, CA . Department of Physics Mocanu, L. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Mohr, J. J. Ludwig-Maximilians-Universität, München . Faculty of Physics; Excellence Cluster Universe, Garching Max-Planck-Institut für extraterrestrische Physik, Garching Natoli, T. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics Omori, Y. McGill Univ., Montreal, QC . Department of Physics and McGill Space Institute Padin, S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Pryke, C. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Reichardt, C. L. Univ. of California, Berkeley, CA University of Melbourne, Parkville, VIC . School of Physics Ruhl, J. E. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Sayre, J. T. Univ. of Colorado, Boulder, CO . Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences; Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Schaffer, K. K. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Enrico Fermi Institute; School of the Art Institute of Chicago, IL . Liberal Arts Department Shirokoff, E. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics; Univ. of California, Berkeley, CA . Department of Physics Staniszewski, Z. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics; California Inst. of Technology , Pasadena, CA . Jet Propulsion Laboratory Stark, A. A. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Vanderlinde, K. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics and Department of Astronomy & Astrophysics Vieira, J. D. University of Illinois at Urbana-Champaign, Urbana, IL . Astronomy Department and Department of Physics Williamson, R. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
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 ${\deg }^{2}$ SPT-SZ survey offers measurements on sub-degree angular scales (multipoles $650\leqslant {\ell }\leqslant 2500$) 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 sample variance as a driver of parameter differences and creating a stringent test for systematic errors. We find no evidence of systematic errors from these tests. When we expand the maximum multipole of SPT data used, we see low-significance shifts in the angular scale of the sound horizon and the physical baryon and cold dark matter densities, with a resulting trend to higher Hubble constant. When we compare SPT and Planck data on the SPT-SZ sky patch to Planck full-sky data but keep the multipole range restricted, we find differences in the parameters n s and ${A}_{s}{e}^{-2\tau }$. We perform further checks, investigating instrumental effects and modeling assumptions, and we find no evidence that the effects investigated are responsible for any of the parameter shifts. Taken together, these tests reveal no evidence for systematic errors in SPT or Planck data in the overlapping sky coverage and multipole range and at most weak evidence for a breakdown of ΛCDM or systematic errors influencing either the Planck data outside the SPT-SZ survey area or the SPT data at ${\ell }\gt 2000$. |
author |
Aylor, K. Hou, Z. Knox, L. Story, K. T. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H-M. Chown, R. Crawford, T. M. Crites, A. T. Haan, T. de Dobbs, M. A. Everett, W. B. George, E. M. Halverson, N. W. Harrington, N. L. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Keisler, R. Lee, A. T. Univ. of California, Berkeley, CA . Department of Physics Lawrence Berkeley National Lab. , Berkeley, CA . Physics Division Leitch, E. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Luong-Van, D. Univ. of Chicago, IL Marrone, D. P. Univ. of Arizona, Tucson, AZ . Steward Observator McMahon, J. J. Univ. of Michigan, Ann Arbor, MI . Department of Physics Meyer, S. S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics, Department of Astronomy and Astrophysics, Department of Physics, and Enrico Fermi Institute Millea, M. Univ. of California, Davis, CA . Department of Physics Mocanu, L. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Mohr, J. J. Ludwig-Maximilians-Universität, München . Faculty of Physics; Excellence Cluster Universe, Garching Max-Planck-Institut für extraterrestrische Physik, Garching Natoli, T. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics Omori, Y. McGill Univ., Montreal, QC . Department of Physics and McGill Space Institute Padin, S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Pryke, C. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Reichardt, C. L. Univ. of California, Berkeley, CA University of Melbourne, Parkville, VIC . School of Physics Ruhl, J. E. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Sayre, J. T. Univ. of Colorado, Boulder, CO . Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences; Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Schaffer, K. K. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Enrico Fermi Institute; School of the Art Institute of Chicago, IL . Liberal Arts Department Shirokoff, E. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics; Univ. of California, Berkeley, CA . Department of Physics Staniszewski, Z. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics; California Inst. of Technology , Pasadena, CA . Jet Propulsion Laboratory Stark, A. A. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Vanderlinde, K. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics and Department of Astronomy & Astrophysics Vieira, J. D. University of Illinois at Urbana-Champaign, Urbana, IL . Astronomy Department and Department of Physics Williamson, R. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics |
author_facet |
Aylor, K. Hou, Z. Knox, L. Story, K. T. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H-M. Chown, R. Crawford, T. M. Crites, A. T. Haan, T. de Dobbs, M. A. Everett, W. B. George, E. M. Halverson, N. W. Harrington, N. L. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Keisler, R. Lee, A. T. Univ. of California, Berkeley, CA . Department of Physics Lawrence Berkeley National Lab. , Berkeley, CA . Physics Division Leitch, E. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Luong-Van, D. Univ. of Chicago, IL Marrone, D. P. Univ. of Arizona, Tucson, AZ . Steward Observator McMahon, J. J. Univ. of Michigan, Ann Arbor, MI . Department of Physics Meyer, S. S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics, Department of Astronomy and Astrophysics, Department of Physics, and Enrico Fermi Institute Millea, M. Univ. of California, Davis, CA . Department of Physics Mocanu, L. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Mohr, J. J. Ludwig-Maximilians-Universität, München . Faculty of Physics; Excellence Cluster Universe, Garching Max-Planck-Institut für extraterrestrische Physik, Garching Natoli, T. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics Omori, Y. McGill Univ., Montreal, QC . Department of Physics and McGill Space Institute Padin, S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Pryke, C. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Reichardt, C. L. Univ. of California, Berkeley, CA University of Melbourne, Parkville, VIC . School of Physics Ruhl, J. E. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Sayre, J. T. Univ. of Colorado, Boulder, CO . Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences; Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Schaffer, K. K. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Enrico Fermi Institute; School of the Art Institute of Chicago, IL . Liberal Arts Department Shirokoff, E. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics; Univ. of California, Berkeley, CA . Department of Physics Staniszewski, Z. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics; California Inst. of Technology , Pasadena, CA . Jet Propulsion Laboratory Stark, A. A. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Vanderlinde, K. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics and Department of Astronomy & Astrophysics Vieira, J. D. University of Illinois at Urbana-Champaign, Urbana, IL . Astronomy Department and Department of Physics Williamson, R. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics |
author_sort |
Aylor, K. |
title |
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
title_short |
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
title_full |
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
title_fullStr |
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
title_full_unstemmed |
A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite |
title_sort |
comparison of cosmological parameters determined from cmb temperature power spectra from the south pole telescope and the planck satellite |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1419642 https://www.osti.gov/biblio/1419642 https://doi.org/10.3847/1538-4357/aa947b |
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ENVELOPE(158.317,158.317,-80.867,-80.867) |
geographic |
Hubble South Pole |
geographic_facet |
Hubble South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1419642 https://www.osti.gov/biblio/1419642 https://doi.org/10.3847/1538-4357/aa947b doi:10.3847/1538-4357/aa947b |
op_doi |
https://doi.org/10.3847/1538-4357/aa947b |
container_title |
The Astrophysical Journal |
container_volume |
850 |
container_issue |
1 |
container_start_page |
101 |
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1772819825923457024 |
spelling |
ftosti:oai:osti.gov:1419642 2023-07-30T04:06:52+02:00 A Comparison of Cosmological Parameters Determined from CMB Temperature Power Spectra from the South Pole Telescope and the Planck Satellite Aylor, K. Hou, Z. Knox, L. Story, K. T. Benson, B. A. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Cho, H-M. Chown, R. Crawford, T. M. Crites, A. T. Haan, T. de Dobbs, M. A. Everett, W. B. George, E. M. Halverson, N. W. Harrington, N. L. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Keisler, R. Lee, A. T. Univ. of California, Berkeley, CA . Department of Physics Lawrence Berkeley National Lab. , Berkeley, CA . Physics Division Leitch, E. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Luong-Van, D. Univ. of Chicago, IL Marrone, D. P. Univ. of Arizona, Tucson, AZ . Steward Observator McMahon, J. J. Univ. of Michigan, Ann Arbor, MI . Department of Physics Meyer, S. S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics, Department of Astronomy and Astrophysics, Department of Physics, and Enrico Fermi Institute Millea, M. Univ. of California, Davis, CA . Department of Physics Mocanu, L. M. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Mohr, J. J. Ludwig-Maximilians-Universität, München . Faculty of Physics; Excellence Cluster Universe, Garching Max-Planck-Institut für extraterrestrische Physik, Garching Natoli, T. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics Omori, Y. McGill Univ., Montreal, QC . Department of Physics and McGill Space Institute Padin, S. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Pryke, C. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics Reichardt, C. L. Univ. of California, Berkeley, CA University of Melbourne, Parkville, VIC . School of Physics Ruhl, J. E. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Sayre, J. T. Univ. of Colorado, Boulder, CO . Center for Astrophysics and Space Astronomy, Department of Astrophysical and Planetary Sciences; Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics Schaffer, K. K. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Enrico Fermi Institute; School of the Art Institute of Chicago, IL . Liberal Arts Department Shirokoff, E. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics; Univ. of California, Berkeley, CA . Department of Physics Staniszewski, Z. Case Western Reserve University, Cleveland, OH . Physics Department, Center for Education and Research in Cosmology and Astrophysics; California Inst. of Technology , Pasadena, CA . Jet Propulsion Laboratory Stark, A. A. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA Vanderlinde, K. University of Toronto, ON . Dunlap Institute for Astronomy & Astrophysics and Department of Astronomy & Astrophysics Vieira, J. D. University of Illinois at Urbana-Champaign, Urbana, IL . Astronomy Department and Department of Physics Williamson, R. Univ. of Chicago, IL . Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics 2022-05-23 application/pdf http://www.osti.gov/servlets/purl/1419642 https://www.osti.gov/biblio/1419642 https://doi.org/10.3847/1538-4357/aa947b unknown http://www.osti.gov/servlets/purl/1419642 https://www.osti.gov/biblio/1419642 https://doi.org/10.3847/1538-4357/aa947b doi:10.3847/1538-4357/aa947b 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.3847/1538-4357/aa947b 2023-07-11T09:23:59Z 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 ${\deg }^{2}$ SPT-SZ survey offers measurements on sub-degree angular scales (multipoles $650\leqslant {\ell }\leqslant 2500$) 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 sample variance as a driver of parameter differences and creating a stringent test for systematic errors. We find no evidence of systematic errors from these tests. When we expand the maximum multipole of SPT data used, we see low-significance shifts in the angular scale of the sound horizon and the physical baryon and cold dark matter densities, with a resulting trend to higher Hubble constant. When we compare SPT and Planck data on the SPT-SZ sky patch to Planck full-sky data but keep the multipole range restricted, we find differences in the parameters n s and ${A}_{s}{e}^{-2\tau }$. We perform further checks, investigating instrumental effects and modeling assumptions, and we find no evidence that the effects investigated are responsible for any of the parameter shifts. Taken together, these tests reveal no evidence for systematic errors in SPT or Planck data in the overlapping sky coverage and multipole range and at most weak evidence for a breakdown of ΛCDM or systematic errors influencing either the Planck data outside the SPT-SZ survey area or the SPT data at ${\ell }\gt 2000$. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) South Pole The Astrophysical Journal 850 1 101 |