Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ...
We consider coupled dark energy (CDE) cosmologies, where dark matter particles feel a force stronger than gravity, due to the fifth force mediated by a scalar field which plays the role of dark energy. We perform for the first time a tomographic analysis of coupled dark energy, where the coupling st...
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ftdatacite:10.48550/arxiv.2211.13588 2023-06-11T04:16:47+02:00 Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... Goh, Lisa W. K. Gómez-Valent, Adrià Pettorino, Valeria Kilbinger, Martin 2022 https://dx.doi.org/10.48550/arxiv.2211.13588 https://arxiv.org/abs/2211.13588 unknown arXiv https://dx.doi.org/10.1103/physrevd.107.083503 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences article-journal Text Article ScholarlyArticle 2022 ftdatacite https://doi.org/10.48550/arxiv.2211.1358810.1103/physrevd.107.083503 2023-05-02T10:00:00Z We consider coupled dark energy (CDE) cosmologies, where dark matter particles feel a force stronger than gravity, due to the fifth force mediated by a scalar field which plays the role of dark energy. We perform for the first time a tomographic analysis of coupled dark energy, where the coupling strength is parametrized and constrained in different redshift bins. This allows us to verify which data can better constrain the strength of the coupling and how large the coupling can be at different epochs. First, we employ cosmic microwave background data from Planck, the Atacama Cosmology Telescope (ACT) and South Pole Telescope (SPT), showing the impact of different choices that can be done in combining these datasets. Then, we use a range of low redshift probes to test CDE cosmologies, both for a constant and for a tomographic coupling. In particular, we use for the first time data from weak lensing (the KiDS-1000 survey), galaxy clustering (BOSS survey), and their combination, including 3x2pt galaxy-galaxy ... : 25 pages, 17 figures. Accepted for publication in Physical Review D ... Text South pole DataCite Metadata Store (German National Library of Science and Technology) South Pole |
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Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
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Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences Goh, Lisa W. K. Gómez-Valent, Adrià Pettorino, Valeria Kilbinger, Martin Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
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Cosmology and Nongalactic Astrophysics astro-ph.CO FOS Physical sciences |
description |
We consider coupled dark energy (CDE) cosmologies, where dark matter particles feel a force stronger than gravity, due to the fifth force mediated by a scalar field which plays the role of dark energy. We perform for the first time a tomographic analysis of coupled dark energy, where the coupling strength is parametrized and constrained in different redshift bins. This allows us to verify which data can better constrain the strength of the coupling and how large the coupling can be at different epochs. First, we employ cosmic microwave background data from Planck, the Atacama Cosmology Telescope (ACT) and South Pole Telescope (SPT), showing the impact of different choices that can be done in combining these datasets. Then, we use a range of low redshift probes to test CDE cosmologies, both for a constant and for a tomographic coupling. In particular, we use for the first time data from weak lensing (the KiDS-1000 survey), galaxy clustering (BOSS survey), and their combination, including 3x2pt galaxy-galaxy ... : 25 pages, 17 figures. Accepted for publication in Physical Review D ... |
format |
Text |
author |
Goh, Lisa W. K. Gómez-Valent, Adrià Pettorino, Valeria Kilbinger, Martin |
author_facet |
Goh, Lisa W. K. Gómez-Valent, Adrià Pettorino, Valeria Kilbinger, Martin |
author_sort |
Goh, Lisa W. K. |
title |
Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
title_short |
Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
title_full |
Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
title_fullStr |
Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
title_full_unstemmed |
Constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
title_sort |
constraining constant and tomographic coupled dark energy with low-redshift and high-redshift probes ... |
publisher |
arXiv |
publishDate |
2022 |
url |
https://dx.doi.org/10.48550/arxiv.2211.13588 https://arxiv.org/abs/2211.13588 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://dx.doi.org/10.1103/physrevd.107.083503 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.48550/arxiv.2211.1358810.1103/physrevd.107.083503 |
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1768375390327275520 |