Non-linearities in the Lyman-α forest and in its cross-correlation with dark matter halos

  title={Non-linearities in the Lyman-$\alpha$ forest and in its cross-correlation with dark matter halos},
  author={Jahmour J. Givans and Andreu Font-Ribera and An{\vz}e Slosar and Louise T. C. Seeyave and Christian Pedersen and Keir K. Rogers and Mathias Garny and Diego Blas and Vid Ir{\vs}i{\vc}},
  journal={Journal of Cosmology and Astroparticle Physics},
Three-dimensional correlations of the Lyman-α (Lyα) forest and cross correlations between the Lyα forest and quasars have been measured on large scales, allowing a precise measurement of the baryon acoustic oscillation (BAO) feature at redshifts z > 2. These 3D correlations are often modelled using linear perturbation theory, but full-shape analyses to extract cosmological information beyond BAO will require more realistic models capable of describing non-linearities present at smaller scales… 



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