Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data
We present measurements of the E -mode ( E E ) polarization power spectrum and temperature- E -mode ( T E ) cross-power spectrum of the cosmic microwave background using data collected by SPT-3G, the latest instrument installed on the South Pole Telescope. This analysis uses observations of a 1500 d...
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ftosti:oai:osti.gov:1831958 2023-07-30T04:06:56+02:00 Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data Dutcher, D. 2022-05-31 application/pdf http://www.osti.gov/servlets/purl/1831958 https://www.osti.gov/biblio/1831958 https://doi.org/10.1103/PhysRevD.104.022003 unknown http://www.osti.gov/servlets/purl/1831958 https://www.osti.gov/biblio/1831958 https://doi.org/10.1103/PhysRevD.104.022003 doi:10.1103/PhysRevD.104.022003 79 ASTRONOMY AND ASTROPHYSICS 2022 ftosti https://doi.org/10.1103/PhysRevD.104.022003 2023-07-11T10:08:28Z We present measurements of the E -mode ( E E ) polarization power spectrum and temperature- E -mode ( T E ) cross-power spectrum of the cosmic microwave background using data collected by SPT-3G, the latest instrument installed on the South Pole Telescope. This analysis uses observations of a 1500 deg 2 region at 95, 150, and 220 GHz taken over a four-month period in 2018. We report binned values of the E E and T E power spectra over the angular multipole range 300 ≤ ℓ < 3000 , using the multifrequency data to construct six semi-independent estimates of each power spectrum and their minimum-variance combination. These measurements improve upon the previous results of SPTpol across the multipole ranges 300 ≤ ℓ ≤ 1400 for E E and 300 ≤ ℓ ≤ 1700 for T E , resulting in constraints on cosmological parameters comparable to those from other current leading ground-based experiments. We find that the SPT-3G data set is well fit by a Λ CDM cosmological model with parameter constraints consistent with those from Planck and SPTpol data. From SPT-3G data alone, we find H 0 = 68.8 ± 1.5 km s - 1 Mpc - 1 and σ 8 = 0.789 ± 0.016 , with a gravitational lensing amplitude consistent with the Λ CDM prediction ( A L = 0.98 ± 0.12 ). We combine the SPT-3G and the Planck data sets and obtain joint constraints on the Λ CDM model. The volume of the 68% confidence region in six-dimensional Λ CDM parameter space is reduced by a factor of 1.5 compared to Planck-only constraints, with no significant shifts in central values. We note that the results presented here are obtained from data collected during just half of a typical observing season with only part of the focal plane operable, and that the active detector count has since nearly doubled for observations made with SPT-3G after 2018. Other/Unknown Material South pole SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) South Pole Physical Review D 104 2 |
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79 ASTRONOMY AND ASTROPHYSICS Dutcher, D. Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
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79 ASTRONOMY AND ASTROPHYSICS |
description |
We present measurements of the E -mode ( E E ) polarization power spectrum and temperature- E -mode ( T E ) cross-power spectrum of the cosmic microwave background using data collected by SPT-3G, the latest instrument installed on the South Pole Telescope. This analysis uses observations of a 1500 deg 2 region at 95, 150, and 220 GHz taken over a four-month period in 2018. We report binned values of the E E and T E power spectra over the angular multipole range 300 ≤ ℓ < 3000 , using the multifrequency data to construct six semi-independent estimates of each power spectrum and their minimum-variance combination. These measurements improve upon the previous results of SPTpol across the multipole ranges 300 ≤ ℓ ≤ 1400 for E E and 300 ≤ ℓ ≤ 1700 for T E , resulting in constraints on cosmological parameters comparable to those from other current leading ground-based experiments. We find that the SPT-3G data set is well fit by a Λ CDM cosmological model with parameter constraints consistent with those from Planck and SPTpol data. From SPT-3G data alone, we find H 0 = 68.8 ± 1.5 km s - 1 Mpc - 1 and σ 8 = 0.789 ± 0.016 , with a gravitational lensing amplitude consistent with the Λ CDM prediction ( A L = 0.98 ± 0.12 ). We combine the SPT-3G and the Planck data sets and obtain joint constraints on the Λ CDM model. The volume of the 68% confidence region in six-dimensional Λ CDM parameter space is reduced by a factor of 1.5 compared to Planck-only constraints, with no significant shifts in central values. We note that the results presented here are obtained from data collected during just half of a typical observing season with only part of the focal plane operable, and that the active detector count has since nearly doubled for observations made with SPT-3G after 2018. |
author |
Dutcher, D. |
author_facet |
Dutcher, D. |
author_sort |
Dutcher, D. |
title |
Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
title_short |
Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
title_full |
Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
title_fullStr |
Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
title_full_unstemmed |
Measurements of the E-mode polarization and temperature-E-mode correlation of the CMB from SPT-3G 2018 data |
title_sort |
measurements of the e-mode polarization and temperature-e-mode correlation of the cmb from spt-3g 2018 data |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1831958 https://www.osti.gov/biblio/1831958 https://doi.org/10.1103/PhysRevD.104.022003 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
http://www.osti.gov/servlets/purl/1831958 https://www.osti.gov/biblio/1831958 https://doi.org/10.1103/PhysRevD.104.022003 doi:10.1103/PhysRevD.104.022003 |
op_doi |
https://doi.org/10.1103/PhysRevD.104.022003 |
container_title |
Physical Review D |
container_volume |
104 |
container_issue |
2 |
_version_ |
1772819897177341952 |