ISW-galaxy cross correlation: a probe of dark energy clustering and distribution of dark matter tracers

  title={ISW-galaxy cross correlation: a probe of dark energy clustering and distribution of dark matter tracers},
  author={Shahram Khosravi and Amir Mollazadeh and Shant Baghram},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={003 - 003}
Cross correlation of the Integrated Sachs-Wolfe signal (ISW) with the galaxy distribution in late time is a promising tool for constraining the dark energy properties. Here, we study the effect of dark energy clustering on the ISW-galaxy cross correlation and demonstrate the fact that the bias parameter between the distribution of the galaxies and the underlying dark matter introduces a degeneracy and complications. We argue that as the galaxy's host halo formation time is different from the… 
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Hossein Moshafi,1, ∗ Shant Baghram,2, † and Nima Khosravi3, 4, ‡ School of Astronomy, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran, Iran Department of Physics,


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