Effect of inhomogeneities on the luminosity distance-redshift relation: Is dark energy necessary in a perturbed universe?

@article{Barausse2005EffectOI,
  title={Effect of inhomogeneities on the luminosity distance-redshift relation: Is dark energy necessary in a perturbed universe?},
  author={E. Barausse and S. Matarrese and A. Riotto},
  journal={Physical Review D},
  year={2005},
  volume={71},
  pages={063537}
}
The luminosity distance-redshift relation is one of the fundamental tools of modern cosmology. We compute the luminosity distance-redshift relation in a perturbed flat matter-dominated Universe, taking into account the presence of cosmological inhomogeneities up to second order in perturbation theory. Cosmological observations implementing the luminosity distance-redshift relation tell us that the Universe is presently undergoing a phase of accelerated expansion. This seems to call for a… Expand

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