• Corpus ID: 233324129

Observational constraints on the cosmological expansion rate and spatial curvature

@inproceedings{Ryan2021ObservationalCO,
  title={Observational constraints on the cosmological expansion rate and spatial curvature},
  author={Joseph Ryan},
  year={2021}
}
Observations conducted over the last few decades show that the expansion of the Universe is accelerating. In the standard model of cosmology, this accelerated expansion is attributed to a dark energy in the form of a cosmological constant. It is conceivable, however, for the dark energy to exhibit mild dynamics (so that its energy density changes with time rather than having a constant value), or for the accelerated expansion of the Universe to be caused by some mechanism other than dark energy…