Tomographic constraints on gravity from angular redshift fluctuations in the late Universe

  title={Tomographic constraints on gravity from angular redshift fluctuations in the late Universe},
  author={Carlos Hern'andez-Monteagudo and J. Chaves-Montero and Ra{\'u}l E Angulo and Giovanni Aricco Cefca and Anl and Dipc and Ikerbasque},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
Fluctuations in sky maps of the galaxy redshifts, dubbed as angular redshift fluctuations (ARF), contain precise information about the growth rate of structures and the nature of gravity in the Universe. Specifically, ARF constrain the combination of cosmological parameters $H/H_0\,f\sigma_8(z)$, while being an intrinsically tomographic probe and largely insensitive to many observational systematic errors, all this without requiring the assumption of a fiducial cosmology. We present the first… 

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