Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT
International audience Planck's Cosmic Microwave Background temperature and polarization observations are the premier dataset for constraining cosmological models. Cosmic variance limited temperature at large and intermediate scales today dominates the constraints; polarization provides additio...
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ftuniparissaclay:oai:HAL:hal-03644852v1 2024-09-15T18:36:46+00:00 Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT La Posta, Adrien Natale, Umberto Calabrese, Erminia Garrido, Xavier Louis, Thibaut Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Cardiff University European Project: 849169,ERC-2019-STG 2023 https://hal.science/hal-03644852 https://doi.org/10.1103/PhysRevD.107.023510 en eng HAL CCSD American Physical Society info:eu-repo/semantics/altIdentifier/arxiv/2204.01885 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.107.023510 info:eu-repo/grantAgreement//849169/EU/A programme for cosmology from current and next-generation Cosmic Microwave Background experiments/ERC-2019-STG hal-03644852 https://hal.science/hal-03644852 ARXIV: 2204.01885 doi:10.1103/PhysRevD.107.023510 INSPIRE: 2063518 ISSN: 1550-7998 EISSN: 1550-2368 Physical Review D https://hal.science/hal-03644852 Physical Review D, 2023, 107 (2), pp.023510. ⟨10.1103/PhysRevD.107.023510⟩ [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2023 ftuniparissaclay https://doi.org/10.1103/PhysRevD.107.023510 2024-08-30T01:48:53Z International audience Planck's Cosmic Microwave Background temperature and polarization observations are the premier dataset for constraining cosmological models. Cosmic variance limited temperature at large and intermediate scales today dominates the constraints; polarization provides additional constraining power and further scrutiny of the models. To complete this picture from Planck, ground-based experiments, such as the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) continue to add temperature and polarization measurements at small scales, allowing for the extraction of competitive cosmological constraints from the $TE$ and $EE$ power spectra. Matching at the same time all these stringent probes is a key challenge and validation step for any cosmological model. In particular, $\Lambda$CDM requires a tight consistency between the temperature and polarization measurements. In this paper, we present a number of methods to identify and quantify possible inconsistencies between temperature and polarization, we apply them to the latest Planck, ACT and SPT data and find no evidence for a deviation from $\Lambda$CDM. Application of these methods will have increased importance for future, more constraining CMB data. Article in Journal/Newspaper South pole Archives ouvertes de Paris-Saclay Physical Review D 107 2 |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] La Posta, Adrien Natale, Umberto Calabrese, Erminia Garrido, Xavier Louis, Thibaut Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
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International audience Planck's Cosmic Microwave Background temperature and polarization observations are the premier dataset for constraining cosmological models. Cosmic variance limited temperature at large and intermediate scales today dominates the constraints; polarization provides additional constraining power and further scrutiny of the models. To complete this picture from Planck, ground-based experiments, such as the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) continue to add temperature and polarization measurements at small scales, allowing for the extraction of competitive cosmological constraints from the $TE$ and $EE$ power spectra. Matching at the same time all these stringent probes is a key challenge and validation step for any cosmological model. In particular, $\Lambda$CDM requires a tight consistency between the temperature and polarization measurements. In this paper, we present a number of methods to identify and quantify possible inconsistencies between temperature and polarization, we apply them to the latest Planck, ACT and SPT data and find no evidence for a deviation from $\Lambda$CDM. Application of these methods will have increased importance for future, more constraining CMB data. |
author2 |
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab) Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Cardiff University European Project: 849169,ERC-2019-STG |
format |
Article in Journal/Newspaper |
author |
La Posta, Adrien Natale, Umberto Calabrese, Erminia Garrido, Xavier Louis, Thibaut |
author_facet |
La Posta, Adrien Natale, Umberto Calabrese, Erminia Garrido, Xavier Louis, Thibaut |
author_sort |
La Posta, Adrien |
title |
Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
title_short |
Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
title_full |
Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
title_fullStr |
Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
title_full_unstemmed |
Assessing consistency between CMB temperature and polarization measurements, with application to Planck, ACT and SPT |
title_sort |
assessing consistency between cmb temperature and polarization measurements, with application to planck, act and spt |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-03644852 https://doi.org/10.1103/PhysRevD.107.023510 |
genre |
South pole |
genre_facet |
South pole |
op_source |
ISSN: 1550-7998 EISSN: 1550-2368 Physical Review D https://hal.science/hal-03644852 Physical Review D, 2023, 107 (2), pp.023510. ⟨10.1103/PhysRevD.107.023510⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/2204.01885 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.107.023510 info:eu-repo/grantAgreement//849169/EU/A programme for cosmology from current and next-generation Cosmic Microwave Background experiments/ERC-2019-STG hal-03644852 https://hal.science/hal-03644852 ARXIV: 2204.01885 doi:10.1103/PhysRevD.107.023510 INSPIRE: 2063518 |
op_doi |
https://doi.org/10.1103/PhysRevD.107.023510 |
container_title |
Physical Review D |
container_volume |
107 |
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2 |
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1810480479513608192 |