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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2512.06701 |
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| _version_ | 1866915664506126336 |
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| author | Salcedo, Andrés N. Rozo, Eduardo Wu, Hao-Yi Cao, Shulei Paillas, Enrique Zhang, Hanyu Rykoff, Eli S. |
| author_facet | Salcedo, Andrés N. Rozo, Eduardo Wu, Hao-Yi Cao, Shulei Paillas, Enrique Zhang, Hanyu Rykoff, Eli S. |
| contents | We show that, in flat $Λ$CDM, low-redshift structure probes -- cluster abundances, 3$\times$2-point analyses, and full-shape clustering -- are mutually consistent, jointly delivering precise constraints on $σ_8$ and $Ω_{\rm m}$ that agree with geometrical datasets (CMB+BAO+SN). In $w_0w_a$CDM, adding clusters to the geometry dataset reduces the evidence for evolving dark energy while relaxing the $H_0$ tension, suggesting a $Λ$CDM evolution of the late-time Universe and a sound horizon that differs from its standard value. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_06701 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | What Galaxy Clusters Have to Say About Dynamical Dark Energy and $H_0$ Salcedo, Andrés N. Rozo, Eduardo Wu, Hao-Yi Cao, Shulei Paillas, Enrique Zhang, Hanyu Rykoff, Eli S. Cosmology and Nongalactic Astrophysics We show that, in flat $Λ$CDM, low-redshift structure probes -- cluster abundances, 3$\times$2-point analyses, and full-shape clustering -- are mutually consistent, jointly delivering precise constraints on $σ_8$ and $Ω_{\rm m}$ that agree with geometrical datasets (CMB+BAO+SN). In $w_0w_a$CDM, adding clusters to the geometry dataset reduces the evidence for evolving dark energy while relaxing the $H_0$ tension, suggesting a $Λ$CDM evolution of the late-time Universe and a sound horizon that differs from its standard value. |
| title | What Galaxy Clusters Have to Say About Dynamical Dark Energy and $H_0$ |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2512.06701 |