Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model
We explore a possible time variation of the fine structure constant (α ≡ e²/ℏc) using the Sunyaev–Zel'dovich effect measurements of galaxy clusters along with their X-ray observations. Specifically, the ratio of the integrated Comptonization parameter Y_(SZ)D²_A and its X-ray counterpart Y_X is...
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ftcaltechauth:oai:authors.library.caltech.edu:112204 2023-05-15T18:22:33+02:00 Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model Liu, Zhi-E Liu, Wen-Fei Zhang, Tong-Jie Zhai, Zhong-Xu Bora, Kamal 2021-11-20 application/pdf https://authors.library.caltech.edu/112204/ https://authors.library.caltech.edu/112204/1/Liu_2021_ApJ_922_19.pdf https://authors.library.caltech.edu/112204/2/2109.00134.pdf https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674 en eng American Astronomical Society https://authors.library.caltech.edu/112204/1/Liu_2021_ApJ_922_19.pdf https://authors.library.caltech.edu/112204/2/2109.00134.pdf Liu, Zhi-E and Liu, Wen-Fei and Zhang, Tong-Jie and Zhai, Zhong-Xu and Bora, Kamal (2021) Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model. Astrophysical Journal, 922 (1). Art. No. 19. ISSN 0004-637X. doi:10.3847/1538-4357/ac2150. https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674 <https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674> other cc_by CC-BY Article PeerReviewed 2021 ftcaltechauth https://doi.org/10.3847/1538-4357/ac2150 2021-12-09T18:39:39Z We explore a possible time variation of the fine structure constant (α ≡ e²/ℏc) using the Sunyaev–Zel'dovich effect measurements of galaxy clusters along with their X-ray observations. Specifically, the ratio of the integrated Comptonization parameter Y_(SZ)D²_A and its X-ray counterpart Y_X is used as an observable to constrain the bounds on the variation of α. Considering the violation of the cosmic distance duality relation, this ratio depends on the fine structure constant of ∼ α³. We use the quintessence model to provide the origin of α time variation. In order to give a robust test on α variation, two galaxy cluster samples, the 61 clusters provided by the Planck collaboration and the 58 clusters detected by the South Pole Telescope (SPT), are collected for analysis. Their X-ray observations are given by the XMM-Newton survey. Our results give ζ = -0.203_(-0.099)^(+0.101) for the Planck sample and ζ = -0.043_(-0.148)^(+0.165) for the SPT sample, indicating that α is constant with redshift within 3σ and 1σ for the two samples, respectively. Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) South Pole The Astrophysical Journal 922 1 19 |
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Caltech Authors (California Institute of Technology) |
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language |
English |
description |
We explore a possible time variation of the fine structure constant (α ≡ e²/ℏc) using the Sunyaev–Zel'dovich effect measurements of galaxy clusters along with their X-ray observations. Specifically, the ratio of the integrated Comptonization parameter Y_(SZ)D²_A and its X-ray counterpart Y_X is used as an observable to constrain the bounds on the variation of α. Considering the violation of the cosmic distance duality relation, this ratio depends on the fine structure constant of ∼ α³. We use the quintessence model to provide the origin of α time variation. In order to give a robust test on α variation, two galaxy cluster samples, the 61 clusters provided by the Planck collaboration and the 58 clusters detected by the South Pole Telescope (SPT), are collected for analysis. Their X-ray observations are given by the XMM-Newton survey. Our results give ζ = -0.203_(-0.099)^(+0.101) for the Planck sample and ζ = -0.043_(-0.148)^(+0.165) for the SPT sample, indicating that α is constant with redshift within 3σ and 1σ for the two samples, respectively. |
format |
Article in Journal/Newspaper |
author |
Liu, Zhi-E Liu, Wen-Fei Zhang, Tong-Jie Zhai, Zhong-Xu Bora, Kamal |
spellingShingle |
Liu, Zhi-E Liu, Wen-Fei Zhang, Tong-Jie Zhai, Zhong-Xu Bora, Kamal Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
author_facet |
Liu, Zhi-E Liu, Wen-Fei Zhang, Tong-Jie Zhai, Zhong-Xu Bora, Kamal |
author_sort |
Liu, Zhi-E |
title |
Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
title_short |
Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
title_full |
Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
title_fullStr |
Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
title_full_unstemmed |
Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model |
title_sort |
probing the time variation of a fine structure constant using galaxy clusters and the quintessence model |
publisher |
American Astronomical Society |
publishDate |
2021 |
url |
https://authors.library.caltech.edu/112204/ https://authors.library.caltech.edu/112204/1/Liu_2021_ApJ_922_19.pdf https://authors.library.caltech.edu/112204/2/2109.00134.pdf https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://authors.library.caltech.edu/112204/1/Liu_2021_ApJ_922_19.pdf https://authors.library.caltech.edu/112204/2/2109.00134.pdf Liu, Zhi-E and Liu, Wen-Fei and Zhang, Tong-Jie and Zhai, Zhong-Xu and Bora, Kamal (2021) Probing the Time Variation of a Fine Structure Constant Using Galaxy Clusters and the Quintessence Model. Astrophysical Journal, 922 (1). Art. No. 19. ISSN 0004-637X. doi:10.3847/1538-4357/ac2150. https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674 <https://resolver.caltech.edu/CaltechAUTHORS:20211203-204701674> |
op_rights |
other cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3847/1538-4357/ac2150 |
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The Astrophysical Journal |
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922 |
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1 |
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19 |
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1766201966464073728 |