Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data
We report a B-mode power spectrum measurement from the cosmic microwave background (CMB) polarization anisotropy observations made using the SPTpol instrument on the South Pole Telescope. This work uses 500 deg 2 of SPTpol data, a five-fold increase over the last SPTpol B-mode release. As a result,...
Published in: | Physical Review D |
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Online Access: | http://www.osti.gov/servlets/purl/1647293 https://www.osti.gov/biblio/1647293 https://doi.org/10.1103/physrevd.101.122003 |
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ftosti:oai:osti.gov:1647293 2023-07-30T04:06:55+02:00 Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data Sayre, J. T. Reichardt, C. L. Henning, J. W. Ade, P. A. R. Anderson, A. J. Austermann, J. E. Avva, J. S. Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Chaubal, P. Chiang, H. C. Citron, R. Corbett Moran, C. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Everett, W. Gallicchio, J. George, E. M. Gilbert, A. Gupta, N. Halverson, N. W. Harrington, N. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Knox, L. Lee, A. T. Li, D. Lowitz, A. McMahon, J. J. Meyer, S. S. Mocanu, L. M. Montgomery, J. Nadolski, A. Natoli, T. Nibarger, J. P. Noble, G. Novosad, V. Padin, S. Patil, S. Pryke, C. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Sievers, C. Smecher, G. Stark, A. A. Tucker, C. Vanderlinde, K. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. 2022-05-30 application/pdf http://www.osti.gov/servlets/purl/1647293 https://www.osti.gov/biblio/1647293 https://doi.org/10.1103/physrevd.101.122003 unknown http://www.osti.gov/servlets/purl/1647293 https://www.osti.gov/biblio/1647293 https://doi.org/10.1103/physrevd.101.122003 doi:10.1103/physrevd.101.122003 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.1103/physrevd.101.122003 2023-07-11T09:45:03Z We report a B-mode power spectrum measurement from the cosmic microwave background (CMB) polarization anisotropy observations made using the SPTpol instrument on the South Pole Telescope. This work uses 500 deg 2 of SPTpol data, a five-fold increase over the last SPTpol B-mode release. As a result, the bandpower uncertainties have been reduced by more than a factor of two, and the measurement extends to lower multipoles: 52 < ` < 2301. Data from both 95 and 150 GHz are used, allowing for three cross-spectra: 95 GHz x 95 GHz, 95 GHz x 150 GHz, and 150 GHz x 150 GHz. B-mode power is detected at very high significance; we find P(BB < 0) = 5.8 × 10 -71 , corresponding to a 18.1 σ detection of power. With a prior on the galactic dust from Planck, WMAP and BICEP2/Keck observations, the SPTpol B-mode data can be used to set an upper limit on the tensor-to-scalar ratio, r < 0.44 at 95% confidence (the expected 1 σ constraint on r given the measurement uncertainties is 0.22). We find the measured B-mode power is consistent with the Planck best-fit ΛCDM model predictions. Scaling the predicted lensing B-mode power in this model by a factor A lens , the data prefer A lens = 1.17 ± 0.13. These data are currently the most precise measurements of B-mode power at ℓ > 320. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Physical Review D 101 12 |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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language |
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79 ASTRONOMY AND ASTROPHYSICS |
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79 ASTRONOMY AND ASTROPHYSICS Sayre, J. T. Reichardt, C. L. Henning, J. W. Ade, P. A. R. Anderson, A. J. Austermann, J. E. Avva, J. S. Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Chaubal, P. Chiang, H. C. Citron, R. Corbett Moran, C. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Everett, W. Gallicchio, J. George, E. M. Gilbert, A. Gupta, N. Halverson, N. W. Harrington, N. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Knox, L. Lee, A. T. Li, D. Lowitz, A. McMahon, J. J. Meyer, S. S. Mocanu, L. M. Montgomery, J. Nadolski, A. Natoli, T. Nibarger, J. P. Noble, G. Novosad, V. Padin, S. Patil, S. Pryke, C. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Sievers, C. Smecher, G. Stark, A. A. Tucker, C. Vanderlinde, K. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
topic_facet |
79 ASTRONOMY AND ASTROPHYSICS |
description |
We report a B-mode power spectrum measurement from the cosmic microwave background (CMB) polarization anisotropy observations made using the SPTpol instrument on the South Pole Telescope. This work uses 500 deg 2 of SPTpol data, a five-fold increase over the last SPTpol B-mode release. As a result, the bandpower uncertainties have been reduced by more than a factor of two, and the measurement extends to lower multipoles: 52 < ` < 2301. Data from both 95 and 150 GHz are used, allowing for three cross-spectra: 95 GHz x 95 GHz, 95 GHz x 150 GHz, and 150 GHz x 150 GHz. B-mode power is detected at very high significance; we find P(BB < 0) = 5.8 × 10 -71 , corresponding to a 18.1 σ detection of power. With a prior on the galactic dust from Planck, WMAP and BICEP2/Keck observations, the SPTpol B-mode data can be used to set an upper limit on the tensor-to-scalar ratio, r < 0.44 at 95% confidence (the expected 1 σ constraint on r given the measurement uncertainties is 0.22). We find the measured B-mode power is consistent with the Planck best-fit ΛCDM model predictions. Scaling the predicted lensing B-mode power in this model by a factor A lens , the data prefer A lens = 1.17 ± 0.13. These data are currently the most precise measurements of B-mode power at ℓ > 320. |
author |
Sayre, J. T. Reichardt, C. L. Henning, J. W. Ade, P. A. R. Anderson, A. J. Austermann, J. E. Avva, J. S. Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Chaubal, P. Chiang, H. C. Citron, R. Corbett Moran, C. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Everett, W. Gallicchio, J. George, E. M. Gilbert, A. Gupta, N. Halverson, N. W. Harrington, N. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Knox, L. Lee, A. T. Li, D. Lowitz, A. McMahon, J. J. Meyer, S. S. Mocanu, L. M. Montgomery, J. Nadolski, A. Natoli, T. Nibarger, J. P. Noble, G. Novosad, V. Padin, S. Patil, S. Pryke, C. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Sievers, C. Smecher, G. Stark, A. A. Tucker, C. Vanderlinde, K. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. |
author_facet |
Sayre, J. T. Reichardt, C. L. Henning, J. W. Ade, P. A. R. Anderson, A. J. Austermann, J. E. Avva, J. S. Beall, J. A. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Carlstrom, J. E. Chang, C. L. Chaubal, P. Chiang, H. C. Citron, R. Corbett Moran, C. Crawford, T. M. Crites, A. T. de Haan, T. Dobbs, M. A. Everett, W. Gallicchio, J. George, E. M. Gilbert, A. Gupta, N. Halverson, N. W. Harrington, N. Hilton, G. C. Holder, G. P. Holzapfel, W. L. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Knox, L. Lee, A. T. Li, D. Lowitz, A. McMahon, J. J. Meyer, S. S. Mocanu, L. M. Montgomery, J. Nadolski, A. Natoli, T. Nibarger, J. P. Noble, G. Novosad, V. Padin, S. Patil, S. Pryke, C. Ruhl, J. E. Saliwanchik, B. R. Schaffer, K. K. Sievers, C. Smecher, G. Stark, A. A. Tucker, C. Vanderlinde, K. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. |
author_sort |
Sayre, J. T. |
title |
Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
title_short |
Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
title_full |
Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
title_fullStr |
Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
title_full_unstemmed |
Measurements of B-mode polarization of the cosmic microwave background from 500 square degrees of SPTpol data |
title_sort |
measurements of b-mode polarization of the cosmic microwave background from 500 square degrees of sptpol data |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1647293 https://www.osti.gov/biblio/1647293 https://doi.org/10.1103/physrevd.101.122003 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1647293 https://www.osti.gov/biblio/1647293 https://doi.org/10.1103/physrevd.101.122003 doi:10.1103/physrevd.101.122003 |
op_doi |
https://doi.org/10.1103/physrevd.101.122003 |
container_title |
Physical Review D |
container_volume |
101 |
container_issue |
12 |
_version_ |
1772819870186995712 |