• Corpus ID: 238531500

A Cosmological Underdensity Does Not Solve the Hubble Tension

@inproceedings{Castello2021ACU,
  title={A Cosmological Underdensity Does Not Solve the Hubble Tension},
  author={Sveva Castello and Marcus Hogaas and Edvard Mortsell},
  year={2021}
}
A potential solution to the Hubble tension is the hypothesis that the Milky Way is located near the center of a matter underdensity. We model this scenario through the Lemâıtre–Tolman–Bondi formalism with the inclusion of a cosmological constant (ΛLTB) and consider a generalized Gaussian parametrization for the matter density profile. We constrain the underdensity and the background cosmology with a combination of data sets: the Pantheon Sample of type Ia supernovae (both the full catalogue and… 
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