A Hubble Constant Estimate from Galaxy Cluster and type Ia SNe Observations
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866929355928633344 |
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| author | Colaço, L. R. Ferreira, M. S. Holanda, R. F. L. Gonzalez, J. E. Nunes, Rafael C. |
| author_facet | Colaço, L. R. Ferreira, M. S. Holanda, R. F. L. Gonzalez, J. E. Nunes, Rafael C. |
| contents | In this work, we constrain the Hubble constant parameter, $H_0$, using a combination of the Pantheon sample and galaxy clusters (GC) measurements from minimal cosmological assumptions. Assuming the validity of the cosmic distance duality relation, an estimator is created for $H_0$ that only depends on simple geometrical distances, which is evaluated from Pantheon and a GC angular diameter distance sample afterward. The statistical and systematic errors in GC measurements are summed in quadrature in our analysis. We find $H_0 = 67.22 \pm 6.07$ ${\rm km \ s^{-1} Mpc^{-1}}$ in $1σ$ confidence level (C.L.). This measurement presents an error of around 9\%, showing that future and better GC measurements can shed light on the current Hubble tension |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_18711 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A Hubble Constant Estimate from Galaxy Cluster and type Ia SNe Observations Colaço, L. R. Ferreira, M. S. Holanda, R. F. L. Gonzalez, J. E. Nunes, Rafael C. Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology In this work, we constrain the Hubble constant parameter, $H_0$, using a combination of the Pantheon sample and galaxy clusters (GC) measurements from minimal cosmological assumptions. Assuming the validity of the cosmic distance duality relation, an estimator is created for $H_0$ that only depends on simple geometrical distances, which is evaluated from Pantheon and a GC angular diameter distance sample afterward. The statistical and systematic errors in GC measurements are summed in quadrature in our analysis. We find $H_0 = 67.22 \pm 6.07$ ${\rm km \ s^{-1} Mpc^{-1}}$ in $1σ$ confidence level (C.L.). This measurement presents an error of around 9\%, showing that future and better GC measurements can shed light on the current Hubble tension |
| title | A Hubble Constant Estimate from Galaxy Cluster and type Ia SNe Observations |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2310.18711 |