Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G
We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope. The surveys cover separate regions of 1500, 2650, and 6000 deg ^2 to different depths, in total observing 25% of the sky. These regions will be...
Published in: | The Astrophysical Journal |
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Online Access: | https://doi.org/10.3847/1538-4357/ad5ff1 https://doaj.org/article/3b77f96a6b2644aea0cd053a19eeb77c |
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ftdoajarticles:oai:doaj.org/article:3b77f96a6b2644aea0cd053a19eeb77c 2024-09-30T14:43:46+00:00 Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G K. Prabhu S. Raghunathan M. Millea G. P. Lynch P. A. R. Ade E. Anderes A. J. Anderson B. Ansarinejad M. Archipley L. Balkenhol K. Benabed A. N. Bender B. A. Benson F. Bianchini L. E. Bleem F. R. Bouchet L. Bryant E. Camphuis J. E. Carlstrom T. W. Cecil C. L. Chang P. Chaubal P. M. Chichura A. Chokshi T.-L. Chou A. Coerver T. M. Crawford A. Cukierman C. Daley T. de Haan K. R. Dibert M. A. Dobbs A. Doussot D. Dutcher W. Everett C. Feng K. R. Ferguson K. Fichman A. Foster S. Galli A. E. Gambrel R. W. Gardner F. Ge N. Goeckner-Wald R. Gualtieri F. Guidi S. Guns N. W. Halverson E. Hivon G. P. Holder W. L. Holzapfel J. C. Hood A. Hryciuk N. Huang F. Kéruzoré L. Knox M. Korman K. Kornoelje C.-L. Kuo A. T. Lee K. Levy A. E. Lowitz C. Lu A. Maniyar F. Menanteau J. Montgomery Y. Nakato T. Natoli G. I. Noble V. Novosad Y. Omori S. Padin Z. Pan P. Paschos K. A. Phadke A. W. Pollak W. Quan M. Rahimi A. Rahlin C. L. Reichardt M. Rouble J. E. Ruhl E. Schiappucci G. Smecher J. A. Sobrin A. A. Stark J. Stephen A. Suzuki C. Tandoi K. L. Thompson B. Thorne C. Trendafilova C. Tucker C. Umilta A. Vitrier J. D. Vieira Y. Wan G. Wang N. Whitehorn W. L. K. Wu V. Yefremenko M. R. Young J. A. Zebrowski 2024-01-01T00:00:00Z https://doi.org/10.3847/1538-4357/ad5ff1 https://doaj.org/article/3b77f96a6b2644aea0cd053a19eeb77c EN eng IOP Publishing https://doi.org/10.3847/1538-4357/ad5ff1 https://doaj.org/toc/1538-4357 doi:10.3847/1538-4357/ad5ff1 1538-4357 https://doaj.org/article/3b77f96a6b2644aea0cd053a19eeb77c The Astrophysical Journal, Vol 973, Iss 1, p 4 (2024) Cosmic microwave background radiation Cosmological parameters Astrophysics QB460-466 article 2024 ftdoajarticles https://doi.org/10.3847/1538-4357/ad5ff1 2024-09-17T16:00:46Z We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope. The surveys cover separate regions of 1500, 2650, and 6000 deg ^2 to different depths, in total observing 25% of the sky. These regions will be measured to white noise levels of roughly 2.5, 9, and $12\ \mu {\rm{K}}$ -armin, respectively, in cosmic microwave background (CMB) temperature units at 150 GHz by the end of 2024. The survey also includes measurements at 95 and 220 GHz, which have noise levels a factor of ∼1.2 and 3.5 times higher than 150 GHz, respectively, with each band having a polarization noise level $\sim \sqrt{2}$ times higher than the temperature noise. We use a novel approach to obtain the covariance matrices for jointly and optimally estimated gravitational lensing potential band powers and unlensed CMB temperature and polarization band powers. We demonstrate the ability to test the ΛCDM model via the consistency of cosmological parameters constrained independently from SPT-3G and Planck data, and consider the improvement in constraints on ΛCDM extension parameters from a joint analysis of SPT-3G and Planck data. The ΛCDM cosmological parameters are typically constrained with uncertainties up to ∼2 times smaller with SPT-3G data, compared to Planck, with the two data sets measuring significantly different angular scales and polarization levels, providing additional tests of the standard cosmological model. Article in Journal/Newspaper South pole Directory of Open Access Journals: DOAJ Articles South Pole The Astrophysical Journal 973 1 4 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English |
topic |
Cosmic microwave background radiation Cosmological parameters Astrophysics QB460-466 |
spellingShingle |
Cosmic microwave background radiation Cosmological parameters Astrophysics QB460-466 K. Prabhu S. Raghunathan M. Millea G. P. Lynch P. A. R. Ade E. Anderes A. J. Anderson B. Ansarinejad M. Archipley L. Balkenhol K. Benabed A. N. Bender B. A. Benson F. Bianchini L. E. Bleem F. R. Bouchet L. Bryant E. Camphuis J. E. Carlstrom T. W. Cecil C. L. Chang P. Chaubal P. M. Chichura A. Chokshi T.-L. Chou A. Coerver T. M. Crawford A. Cukierman C. Daley T. de Haan K. R. Dibert M. A. Dobbs A. Doussot D. Dutcher W. Everett C. Feng K. R. Ferguson K. Fichman A. Foster S. Galli A. E. Gambrel R. W. Gardner F. Ge N. Goeckner-Wald R. Gualtieri F. Guidi S. Guns N. W. Halverson E. Hivon G. P. Holder W. L. Holzapfel J. C. Hood A. Hryciuk N. Huang F. Kéruzoré L. Knox M. Korman K. Kornoelje C.-L. Kuo A. T. Lee K. Levy A. E. Lowitz C. Lu A. Maniyar F. Menanteau J. Montgomery Y. Nakato T. Natoli G. I. Noble V. Novosad Y. Omori S. Padin Z. Pan P. Paschos K. A. Phadke A. W. Pollak W. Quan M. Rahimi A. Rahlin C. L. Reichardt M. Rouble J. E. Ruhl E. Schiappucci G. Smecher J. A. Sobrin A. A. Stark J. Stephen A. Suzuki C. Tandoi K. L. Thompson B. Thorne C. Trendafilova C. Tucker C. Umilta A. Vitrier J. D. Vieira Y. Wan G. Wang N. Whitehorn W. L. K. Wu V. Yefremenko M. R. Young J. A. Zebrowski Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
topic_facet |
Cosmic microwave background radiation Cosmological parameters Astrophysics QB460-466 |
description |
We forecast constraints on cosmological parameters enabled by three surveys conducted with SPT-3G, the third-generation camera on the South Pole Telescope. The surveys cover separate regions of 1500, 2650, and 6000 deg ^2 to different depths, in total observing 25% of the sky. These regions will be measured to white noise levels of roughly 2.5, 9, and $12\ \mu {\rm{K}}$ -armin, respectively, in cosmic microwave background (CMB) temperature units at 150 GHz by the end of 2024. The survey also includes measurements at 95 and 220 GHz, which have noise levels a factor of ∼1.2 and 3.5 times higher than 150 GHz, respectively, with each band having a polarization noise level $\sim \sqrt{2}$ times higher than the temperature noise. We use a novel approach to obtain the covariance matrices for jointly and optimally estimated gravitational lensing potential band powers and unlensed CMB temperature and polarization band powers. We demonstrate the ability to test the ΛCDM model via the consistency of cosmological parameters constrained independently from SPT-3G and Planck data, and consider the improvement in constraints on ΛCDM extension parameters from a joint analysis of SPT-3G and Planck data. The ΛCDM cosmological parameters are typically constrained with uncertainties up to ∼2 times smaller with SPT-3G data, compared to Planck, with the two data sets measuring significantly different angular scales and polarization levels, providing additional tests of the standard cosmological model. |
format |
Article in Journal/Newspaper |
author |
K. Prabhu S. Raghunathan M. Millea G. P. Lynch P. A. R. Ade E. Anderes A. J. Anderson B. Ansarinejad M. Archipley L. Balkenhol K. Benabed A. N. Bender B. A. Benson F. Bianchini L. E. Bleem F. R. Bouchet L. Bryant E. Camphuis J. E. Carlstrom T. W. Cecil C. L. Chang P. Chaubal P. M. Chichura A. Chokshi T.-L. Chou A. Coerver T. M. Crawford A. Cukierman C. Daley T. de Haan K. R. Dibert M. A. Dobbs A. Doussot D. Dutcher W. Everett C. Feng K. R. Ferguson K. Fichman A. Foster S. Galli A. E. Gambrel R. W. Gardner F. Ge N. Goeckner-Wald R. Gualtieri F. Guidi S. Guns N. W. Halverson E. Hivon G. P. Holder W. L. Holzapfel J. C. Hood A. Hryciuk N. Huang F. Kéruzoré L. Knox M. Korman K. Kornoelje C.-L. Kuo A. T. Lee K. Levy A. E. Lowitz C. Lu A. Maniyar F. Menanteau J. Montgomery Y. Nakato T. Natoli G. I. Noble V. Novosad Y. Omori S. Padin Z. Pan P. Paschos K. A. Phadke A. W. Pollak W. Quan M. Rahimi A. Rahlin C. L. Reichardt M. Rouble J. E. Ruhl E. Schiappucci G. Smecher J. A. Sobrin A. A. Stark J. Stephen A. Suzuki C. Tandoi K. L. Thompson B. Thorne C. Trendafilova C. Tucker C. Umilta A. Vitrier J. D. Vieira Y. Wan G. Wang N. Whitehorn W. L. K. Wu V. Yefremenko M. R. Young J. A. Zebrowski |
author_facet |
K. Prabhu S. Raghunathan M. Millea G. P. Lynch P. A. R. Ade E. Anderes A. J. Anderson B. Ansarinejad M. Archipley L. Balkenhol K. Benabed A. N. Bender B. A. Benson F. Bianchini L. E. Bleem F. R. Bouchet L. Bryant E. Camphuis J. E. Carlstrom T. W. Cecil C. L. Chang P. Chaubal P. M. Chichura A. Chokshi T.-L. Chou A. Coerver T. M. Crawford A. Cukierman C. Daley T. de Haan K. R. Dibert M. A. Dobbs A. Doussot D. Dutcher W. Everett C. Feng K. R. Ferguson K. Fichman A. Foster S. Galli A. E. Gambrel R. W. Gardner F. Ge N. Goeckner-Wald R. Gualtieri F. Guidi S. Guns N. W. Halverson E. Hivon G. P. Holder W. L. Holzapfel J. C. Hood A. Hryciuk N. Huang F. Kéruzoré L. Knox M. Korman K. Kornoelje C.-L. Kuo A. T. Lee K. Levy A. E. Lowitz C. Lu A. Maniyar F. Menanteau J. Montgomery Y. Nakato T. Natoli G. I. Noble V. Novosad Y. Omori S. Padin Z. Pan P. Paschos K. A. Phadke A. W. Pollak W. Quan M. Rahimi A. Rahlin C. L. Reichardt M. Rouble J. E. Ruhl E. Schiappucci G. Smecher J. A. Sobrin A. A. Stark J. Stephen A. Suzuki C. Tandoi K. L. Thompson B. Thorne C. Trendafilova C. Tucker C. Umilta A. Vitrier J. D. Vieira Y. Wan G. Wang N. Whitehorn W. L. K. Wu V. Yefremenko M. R. Young J. A. Zebrowski |
author_sort |
K. Prabhu |
title |
Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
title_short |
Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
title_full |
Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
title_fullStr |
Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
title_full_unstemmed |
Testing the ΛCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G |
title_sort |
testing the λcdm cosmological model with forthcoming measurements of the cosmic microwave background with spt-3g |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
https://doi.org/10.3847/1538-4357/ad5ff1 https://doaj.org/article/3b77f96a6b2644aea0cd053a19eeb77c |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
The Astrophysical Journal, Vol 973, Iss 1, p 4 (2024) |
op_relation |
https://doi.org/10.3847/1538-4357/ad5ff1 https://doaj.org/toc/1538-4357 doi:10.3847/1538-4357/ad5ff1 1538-4357 https://doaj.org/article/3b77f96a6b2644aea0cd053a19eeb77c |
op_doi |
https://doi.org/10.3847/1538-4357/ad5ff1 |
container_title |
The Astrophysical Journal |
container_volume |
973 |
container_issue |
1 |
container_start_page |
4 |
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1811645429297709056 |