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Lensing corrections to the E_g(z) statistics from large scale structure

Azadeh Moradinezhad Dizgah, Ruth Durrer

29/4/16 Published in : arXiv:1604.08914

We study the impact of the often neglected lensing contribution to galaxy number counts on the Eg statistics which is used to constrain deviations from GR. This contribution affects both the galaxy-galaxy and the convergence-galaxy spectra, while it is larger for the latter. At higher redshifts probed by upcoming surveys, neglecting this term induces a substantial error in the spectra and therefore on the Eg statistics which is constructed from the combination of the two. Moreover, including it, renders the Eg statistics scale and bias-dependent and hence puts into question its very objective.

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Phase I & II research project(s)

  • String Theory
  • Field Theory

Phases of N=2 Necklace Quivers

Classification of universal formality maps for quantizations of Lie bialgebras

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The National Centres of Competence in Research (NCCRs) are a funding scheme of the Swiss National Science Foundation

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