A hydrodynamical halo model for weak-lensing cross correlations

  title={A hydrodynamical halo model for weak-lensing cross correlations},
  author={Alexander Mead and Tilman Tr{\"o}ster and Catherine Heymans and Ludovic Van Waerbeke and Ian G. McCarthy},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
On the scale of galactic haloes, the distribution of matter in the cosmos is affected by energetic, non-gravitational processes; so-called baryonic feedback. A lack of knowledge about the details of how feedback processes redistribute matter is a source of uncertainty for weak-lensing surveys, which accurately probe the clustering of matter in the Universe over a wide range of scales. We develop a cosmology-dependent model for the matter distribution that simultaneously accounts for the… 
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