A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments
International audience We present an updated data-analysis comparison of the most recent observations of the Cosmic Microwave Background temperature anisotropies and polarization angular power spectra released by four different experiments: the Planck satellite on one side, and the Atacama Cosmology...
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ftccsdartic:oai:HAL:hal-03814115v1 2023-12-31T10:23:07+01:00 A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments Di Valentino, Eleonora Giarè, William Melchiorri, Alessandro Silk, Joseph Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2022 https://hal.science/hal-03814115 https://doi.org/10.1103/PhysRevD.106.103506 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/2209.12872 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.106.103506 hal-03814115 https://hal.science/hal-03814115 ARXIV: 2209.12872 doi:10.1103/PhysRevD.106.103506 INSPIRE: 2156899 Phys.Rev.D https://hal.science/hal-03814115 Phys.Rev.D, 2022, 106 (10), pp.103506. ⟨10.1103/PhysRevD.106.103506⟩ power spectrum: angular dependence cosmic background radiation: temperature temperature: anisotropy cosmic background radiation: anisotropy satellite: Planck cosmological model polarization tension pole anomaly WMAP data analysis method [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.1103/PhysRevD.106.103506 2023-12-02T23:48:17Z International audience We present an updated data-analysis comparison of the most recent observations of the Cosmic Microwave Background temperature anisotropies and polarization angular power spectra released by four different experiments: the Planck satellite on one side, and the Atacama Cosmology Telescope (ACTPol) and the South Pole Telescope (SPT-3G), combined with the WMAP satellite 9-years observation data in order to be "Planck-independent" on the other side. We investigate in a systematic way 8 extended cosmological models that differ from the baseline $\Lambda$CDM case by the inclusion of many different combinations of additional degrees of freedom. Our analysis provides several hints for anomalies in the CMB angular power spectra in tension with the standard cosmological model. This indicates that either significant unaccounted-for systematics in the data are producing biased results or that $\Lambda$CDM is an incorrect/incomplete description of Nature. We conclude that only future independent high-precision CMB temperature and polarization measurements could provide a definitive answer. Article in Journal/Newspaper South pole Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Physical Review D 106 10 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
power spectrum: angular dependence cosmic background radiation: temperature temperature: anisotropy cosmic background radiation: anisotropy satellite: Planck cosmological model polarization tension pole anomaly WMAP data analysis method [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
spellingShingle |
power spectrum: angular dependence cosmic background radiation: temperature temperature: anisotropy cosmic background radiation: anisotropy satellite: Planck cosmological model polarization tension pole anomaly WMAP data analysis method [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Di Valentino, Eleonora Giarè, William Melchiorri, Alessandro Silk, Joseph A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
topic_facet |
power spectrum: angular dependence cosmic background radiation: temperature temperature: anisotropy cosmic background radiation: anisotropy satellite: Planck cosmological model polarization tension pole anomaly WMAP data analysis method [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience We present an updated data-analysis comparison of the most recent observations of the Cosmic Microwave Background temperature anisotropies and polarization angular power spectra released by four different experiments: the Planck satellite on one side, and the Atacama Cosmology Telescope (ACTPol) and the South Pole Telescope (SPT-3G), combined with the WMAP satellite 9-years observation data in order to be "Planck-independent" on the other side. We investigate in a systematic way 8 extended cosmological models that differ from the baseline $\Lambda$CDM case by the inclusion of many different combinations of additional degrees of freedom. Our analysis provides several hints for anomalies in the CMB angular power spectra in tension with the standard cosmological model. This indicates that either significant unaccounted-for systematics in the data are producing biased results or that $\Lambda$CDM is an incorrect/incomplete description of Nature. We conclude that only future independent high-precision CMB temperature and polarization measurements could provide a definitive answer. |
author2 |
Institut d'Astrophysique de Paris (IAP) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Di Valentino, Eleonora Giarè, William Melchiorri, Alessandro Silk, Joseph |
author_facet |
Di Valentino, Eleonora Giarè, William Melchiorri, Alessandro Silk, Joseph |
author_sort |
Di Valentino, Eleonora |
title |
A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
title_short |
A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
title_full |
A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
title_fullStr |
A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
title_full_unstemmed |
A health checkup test of the standard cosmological model in view of recent Cosmic Microwave Background Anisotropies experiments |
title_sort |
health checkup test of the standard cosmological model in view of recent cosmic microwave background anisotropies experiments |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03814115 https://doi.org/10.1103/PhysRevD.106.103506 |
genre |
South pole |
genre_facet |
South pole |
op_source |
Phys.Rev.D https://hal.science/hal-03814115 Phys.Rev.D, 2022, 106 (10), pp.103506. ⟨10.1103/PhysRevD.106.103506⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/2209.12872 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.106.103506 hal-03814115 https://hal.science/hal-03814115 ARXIV: 2209.12872 doi:10.1103/PhysRevD.106.103506 INSPIRE: 2156899 |
op_doi |
https://doi.org/10.1103/PhysRevD.106.103506 |
container_title |
Physical Review D |
container_volume |
106 |
container_issue |
10 |
_version_ |
1786834521686016000 |