Tension between the power spectrum of density perturbations measured on large and small scales

@article{Battye2015TensionBT,
  title={Tension between the power spectrum of density perturbations measured on large and small scales},
  author={Richard A. Battye and Tom Charnock and Adam Moss},
  journal={Physical Review D},
  year={2015},
  volume={91},
  pages={103508}
}
  • Richard A. Battye, Tom Charnock, Adam Moss
  • Published 2015
  • Physics
  • Physical Review D
  • There is a tension between measurements of the amplitude of the power spectrum of density perturbations inferred using the cosmic microwave background (CMB) and directly measured by large-scale structure (LSS) on smaller scales. We show that this tension exists, and is robust, for a range of LSS indicators including clusters, lensing and redshift space distortions and using CMB data from either Planck or WMAP + SPT/ACT. One obvious way to try to reconcile this is the inclusion of a massive… CONTINUE READING

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