On Low Hubble Expansion Rate from Planck Data Anomalies
From the linear perturbations of Nash–Greene fluctuations of a background metric, we obtain profiles of Hubble function evolution H(z) and fσ8(z) measurements as compared with the ΛCDM results at intermediate redshifts 0.1<z<1. For parameter estimation, we use joint data from Planck Cosmic Mic...
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ftmdpi:oai:mdpi.com:/2075-4434/10/6/118/ 2023-08-20T04:09:52+02:00 On Low Hubble Expansion Rate from Planck Data Anomalies Abraão J. S. Capistrano Luís A. Cabral Carlos H. Coimbra-Araújo José A. P. F. Marão 2022-12-19 application/pdf https://doi.org/10.3390/galaxies10060118 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/galaxies10060118 https://creativecommons.org/licenses/by/4.0/ Galaxies; Volume 10; Issue 6; Pages: 118 dark energy Nash–Greene theorem gravitational field Text 2022 ftmdpi https://doi.org/10.3390/galaxies10060118 2023-08-01T07:52:40Z From the linear perturbations of Nash–Greene fluctuations of a background metric, we obtain profiles of Hubble function evolution H(z) and fσ8(z) measurements as compared with the ΛCDM results at intermediate redshifts 0.1<z<1. For parameter estimation, we use joint data from Planck Cosmic Microwave Background (CMB) likelihoods of CMB temperature and polarization angular power spectra, Barionic Acoustic Oscillations (BAO) and local measurements of Hubble constant H0 from the Hubble Space Telescope (HST). We analyze the stability of the effective Newtonian constant Geff and its agreement with Big Bang Nucleosynthesis (BBN) constraints. We show that our results are highly compatible with the ΛCDM paradigm, rather extending the perspective for further studies on redshift-space galaxy clustering data. Moreover, we obtain the CMB TT angular spectra with the Integrated Sachs–Wolfe (ISW) effect, which is weakened on low-l scales. The resulting linear matter power spectrum P(k) profile is also compatible with ΛCDM results but somewhat degenerate with an early dark energy (DE) contribution. Finally, posing a dilemma to the solution of Hubble tension, our results indicate a low Hubble expansion rate suggesting possible anomalies in Planck data in consonance with the recent South Pole Telescope (SPT-3G) data. Text South pole MDPI Open Access Publishing Greene ENVELOPE(168.233,168.233,-72.100,-72.100) Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) Nash ENVELOPE(-62.350,-62.350,-74.233,-74.233) South Pole Galaxies 10 6 118 |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
dark energy Nash–Greene theorem gravitational field |
spellingShingle |
dark energy Nash–Greene theorem gravitational field Abraão J. S. Capistrano Luís A. Cabral Carlos H. Coimbra-Araújo José A. P. F. Marão On Low Hubble Expansion Rate from Planck Data Anomalies |
topic_facet |
dark energy Nash–Greene theorem gravitational field |
description |
From the linear perturbations of Nash–Greene fluctuations of a background metric, we obtain profiles of Hubble function evolution H(z) and fσ8(z) measurements as compared with the ΛCDM results at intermediate redshifts 0.1<z<1. For parameter estimation, we use joint data from Planck Cosmic Microwave Background (CMB) likelihoods of CMB temperature and polarization angular power spectra, Barionic Acoustic Oscillations (BAO) and local measurements of Hubble constant H0 from the Hubble Space Telescope (HST). We analyze the stability of the effective Newtonian constant Geff and its agreement with Big Bang Nucleosynthesis (BBN) constraints. We show that our results are highly compatible with the ΛCDM paradigm, rather extending the perspective for further studies on redshift-space galaxy clustering data. Moreover, we obtain the CMB TT angular spectra with the Integrated Sachs–Wolfe (ISW) effect, which is weakened on low-l scales. The resulting linear matter power spectrum P(k) profile is also compatible with ΛCDM results but somewhat degenerate with an early dark energy (DE) contribution. Finally, posing a dilemma to the solution of Hubble tension, our results indicate a low Hubble expansion rate suggesting possible anomalies in Planck data in consonance with the recent South Pole Telescope (SPT-3G) data. |
format |
Text |
author |
Abraão J. S. Capistrano Luís A. Cabral Carlos H. Coimbra-Araújo José A. P. F. Marão |
author_facet |
Abraão J. S. Capistrano Luís A. Cabral Carlos H. Coimbra-Araújo José A. P. F. Marão |
author_sort |
Abraão J. S. Capistrano |
title |
On Low Hubble Expansion Rate from Planck Data Anomalies |
title_short |
On Low Hubble Expansion Rate from Planck Data Anomalies |
title_full |
On Low Hubble Expansion Rate from Planck Data Anomalies |
title_fullStr |
On Low Hubble Expansion Rate from Planck Data Anomalies |
title_full_unstemmed |
On Low Hubble Expansion Rate from Planck Data Anomalies |
title_sort |
on low hubble expansion rate from planck data anomalies |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/galaxies10060118 |
long_lat |
ENVELOPE(168.233,168.233,-72.100,-72.100) ENVELOPE(158.317,158.317,-80.867,-80.867) ENVELOPE(-62.350,-62.350,-74.233,-74.233) |
geographic |
Greene Hubble Nash South Pole |
geographic_facet |
Greene Hubble Nash South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Galaxies; Volume 10; Issue 6; Pages: 118 |
op_relation |
https://dx.doi.org/10.3390/galaxies10060118 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/galaxies10060118 |
container_title |
Galaxies |
container_volume |
10 |
container_issue |
6 |
container_start_page |
118 |
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1774723600960454656 |