Browsing by Subject "Galaxy surveys"

Now showing items 1-3 of 3

    • Constraining the growth rate by combining multiple future surveys 

      Viljoen, Jan-Albert; Fonseca, Jos´e; Maartens, Roy (IOP Publishing, 2020)
      The growth rate of large-scale structure provides a powerful consistency test of the standard cosmological model and a probe of possible deviations from general relativity. We use a Fisher analysis to forecast constraints ...

    • Multipoles of the relativistic galaxy bispectrum 

      Clarkson, Chris; de Weerd, Eline M.; Jolicoeur, Sheean (IOP Publishing Ltd, 2020)
      Above the equality scale the galaxy bispectrum will be a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and other theories of the early universe. On ...

    • Non-linear damping of superimposed primordial oscillations on the matter power spectrum in galaxy surveys 

      Ballardini, Mario; Murgia, Riccardo; Baldi, Marco (IOP Publishing Ltd, 2020)
      Galaxy surveys are an important probe for superimposed oscillations on the primordial power spectrum of curvature perturbations, which are predicted in several theoretical models of inflation and its alternatives. In order ...