skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on January 17, 2019

Title: A Comparison of Maps and Power Spectra Determined from South Pole Telescope and Planck Data

We study the consistency of 150 GHz data from the South Pole Telescope (SPT) and 143 GHz data from the Planck satellite over the patch of sky covered by the SPT-SZ survey. Here, we first visually compare the maps and find that the residuals appear consistent with noise after accounting for differences in angular resolution and filtering. We then calculate (1) the cross-spectrum between two independent halves of SPT data, (2) the cross-spectrum between two independent halves of Planck data, and (3) the cross-spectrum between SPT and Planck data. We find that the three cross-spectra are well fit (PTE = 0.30) by the null hypothesis in which both experiments have measured the same sky map up to a single free calibration parameter—i.e., we find no evidence for systematic errors in either data set. As a by-product, we improve the precision of the SPT calibration by nearly an order of magnitude, from 2.6% to 0.3% in power. Finally, we compare all three cross-spectra to the full-sky Planck power spectrum and find marginal evidence for differences between the power spectra from the SPT-SZ footprint and the full sky. We model these differences as a power law in spherical harmonic multipole number. Themore » best-fit value of this tilt is consistent among the three cross-spectra in the SPT-SZ footprint, implying that the source of this tilt is a sample variance fluctuation in the SPT-SZ region relative to the full sky. Lastly, the consistency of cosmological parameters derived from these data sets is discussed in a companion paper.« less
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7] ;  [8] ; ORCiD logo [1] ;  [9] ; ORCiD logo [10] ;  [11] ;  [12] ;  [2] ; ORCiD logo [13] ;  [14] ;  [15] ; ORCiD logo [16] ;  [15] ;  [17] more »;  [18] ;  [2] ;  [19] ;  [1] ;  [17] ; ORCiD logo [20] ;  [21] ;  [22] ;  [2] ;  [1] ;  [23] ;  [24] ; ORCiD logo [8] ;  [1] ;  [25] ; ORCiD logo [26] ;  [27] ;  [28] ;  [29] ;  [30] ;  [31] ; ORCiD logo [32] ;  [33] ;  [34] ; ORCiD logo [35] ;  [1] « less
  1. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics
  2. Univ. of California, Davis, CA (United States). Dept. of Physics
  3. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  4. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Argonne National Lab. (ANL), Argonne, IL (United States). High Energy Physics Division
  5. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; Argonne National Lab. (ANL), Argonne, IL (United States). High Energy Physics Division; Univ. of Chicago, IL (United States). Dept. of Physics; Univ. of Chicago, IL (United States). Enrico Fermi Inst.
  6. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; Argonne National Lab. (ANL), Argonne, IL (United States). High Energy Physics Division
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  8. McGill Univ., Montreal, QC (Canada). Dept of Physics and McGill Space Inst.
  9. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; California Inst. of Technology (CalTech), Pasadena, CA (United States)
  10. McGill Univ., Montreal, QC (Canada). Dept of Physics and McGill Space Inst.; Univ. of California, Berkeley, CA (United States). Dept. of Physics
  11. McGill Univ., Montreal, QC (Canada). Dept of Physics and McGill Space Inst.; Canadian Inst. for Advanced Research, Toronto, ON (Canada). CIFAR Program in Cosmology and Gravity
  12. Univ. of Colorado, Boulder, CO (United States). Center for Astrophysics and Space Astronomy, Dept. of Astrophysical and Planetary Sciences
  13. Univ. of California, Berkeley, CA (United States). Dept. of Physics; European Southern Observatory, Garching (Germany)
  14. Univ. of Colorado, Boulder, CO (United States). Center for Astrophysics and Space Astronomy, Dept. of Astrophysical and Planetary Sciences; Univ. of Colorado, Boulder, CO (United States). Dept. of Physics
  15. Univ. of California, Berkeley, CA (United States). Dept. of Physics
  16. McGill Univ., Montreal, QC (Canada). Dept of Physics and McGill Space Inst.; Canadian Inst. for Advanced Research, Toronto, ON (Canada). CIFAR Program in Cosmology and Gravity; Univ. of Illinois, Urbana, IL (United States). Astronomy Dept.; Univ. of Illinois, Urbana, IL (United States). Dept. of Physics
  17. Univ. of Chicago, IL (United States)
  18. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Physics; Stanford Univ., CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology
  19. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Physics Division
  20. Univ. of Arizona, Tucson, AZ (United States). Steward Observatory
  21. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics
  22. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; Univ. of Chicago, IL (United States). Dept. of Physics; Univ. of Chicago, IL (United States). Enrico Fermi Inst.
  23. Ludwig Maximilian Univ., Munich (Germany). Faculty of Physics
  24. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Physics; Univ. of Toronto, ON (Canada). Dunlap Inst. for Astronomy & Astrophysics
  25. Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Physics
  26. Univ. of California, Berkeley, CA (United States). Dept. of Physics; Univ. of Melbourne (Australia). School of Physics
  27. Case Western Reserve Univ., Cleveland, OH (United States). Center for Education and Research in Cosmology and Astrophysics, Dept. of Physics
  28. Univ. of Colorado, Boulder, CO (United States). Center for Astrophysics and Space Astronomy, Dept. of Astrophysical and Planetary Sciences; Case Western Reserve Univ., Cleveland, OH (United States). Center for Education and Research in Cosmology and Astrophysics, Dept. of Physics
  29. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Enrico Fermi Inst.; School of the Art Institute of Chicago, Chicago, IL (United States). Liberal Arts Dept.
  30. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Astronomy and Astrophysics; Univ. of California, Berkeley, CA (United States). Dept. of Physics
  31. Case Western Reserve Univ., Cleveland, OH (United States). Center for Education and Research in Cosmology and Astrophysics, Dept. of Physics; California Inst. of Technology (CalTech), Pasadena, CA (United States). Jet Propulsion Lab.
  32. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  33. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics; Univ. of Chicago, IL (United States). Dept. of Physics; Stanford Univ., CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology; Stanford Univ., CA (United States). Dept. of Physics
  34. Univ. of Toronto, ON (Canada). Dunlap Inst. for Astronomy & Astrophysics; Univ. of Toronto, ON (Canada). Dept. of Astronomy & Astrophysics
  35. Univ. of Illinois, Urbana, IL (United States). Dept. of Astronomy; Univ. of Illinois, Urbana, IL (United States). Dept. of Physics
Publication Date:
Grant/Contract Number:
AC02-76SF00515; AC02-06CH11357; AC02-07CH11359; PLR-1248097; PHY-1125897; GBMF 947
Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 853; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
National Science Foundation (NSF); Gordon and Betty Moore Foundation (GBMF); Engineering Research Council of Canada; Australian Research Council (ARC); Gordon and Betty Moore Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; cosmic background radiation; methods: data analysis
OSTI Identifier:
1419974
Alternate Identifier(s):
OSTI ID: 1426763