Speaker
Carlos Rubio Flores
(Pontificia Universidad Católica de Chile)
Description
We have studied how local density perturbations could reconcile the Hubble tension. We reproduced a local void through a perturbed FLRW metric with a potential $\Phi$ which depends on both time and space. This method allowed us to obtain a perturbed luminosity distance, which is compared with both local and cosmological data. We got a region of local parameters, $q_0^\text{Lo}$ and $j_0^\text{Lo}$, which are in agreement with a local void of $\Omega_{m,\text{void}}=(-0.30\pm 0.15)\Omega_{m}$ explaining the differences between the local $H_0$ and the Planck $H_0$. However, when constraining local cosmological parameters with previous results, we found that neither $\Lambda$CDM nor $\Lambda(\omega)$CDM could solve the Hubble tension.
| Poster fallback option for rejected abstracts for parallel oral presentations | Yes |
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Authors
Carlos Rubio Flores
(Pontificia Universidad Católica de Chile)
Marco San Martín
