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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2412.18493 |
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- Model-independent bounds on the Hubble constant $H_0$ are important to shed light on cosmological tensions. We work out a model-independent analysis based on the sum rule, which is applied to late- and early-time data catalogs to determine $H_0$. Through the model-independent Bézier interpolation of the observational Hubble data (OHD) and assuming a flat universe, we reconstruct the dimensionless distances of the sum rule and apply them to strong lensing data to derive constraints on $H_0$. Next, we extend this method to the high-redshift domain including, in other two separated analyses, gamma-ray burst (GRB) data sets from the well-established Amati and Combo correlations. In all three analyses, our findings agree at $1σ$ level with the $H_0$ determined from type Ia supernovae (SNe Ia), and only at $2σ$ level with the measurement derived from the cosmic microwave background (CMB) radiation. Our method evidences that the bounds on $H_0$ are significantly affected by strong lensing data, which favor the local measurement from SNe Ia. Including GRBs causes only a negligible decrease in the value of $H_0$. This may indicate that GRBs can be used to trace the expansion history and, in conjunction with CMB measurements, may heal the Hubble tension and accommodate to the flat $Λ$CDM paradigm purported by CMB data.