Planck evidence for a closed Universe and a possible crisis for cosmology

@article{Valentino2020PlanckEF,
  title={Planck evidence for a closed Universe and a possible crisis for cosmology},
  author={Eleonora Di Valentino and A. Melchiorri and J. Silk},
  journal={Nature Astronomy},
  year={2020},
  volume={4},
  pages={196-203}
}
  • Eleonora Di Valentino, A. Melchiorri, J. Silk
  • Published 2020
  • Physics
  • Nature Astronomy
  • The recent Planck Legacy 2018 release has confirmed the presence of an enhanced lensing amplitude in cosmic microwave background power spectra compared with that predicted in the standard Λ cold dark matter model, where Λ is the cosmological constant. A closed Universe can provide a physical explanation for this effect, with the Planck cosmic microwave background spectra now preferring a positive curvature at more than the 99% confidence level. Here, we further investigate the evidence for a… CONTINUE READING

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