Browsing by Author "Nesseris, Savvas"

Now showing items 1-2 of 2

    • Accuracy of the growth index in the presence of dark energy perturbations 
      Nesseris, Savvas; Sapone, Doménico (Amer Physical Soc, 2015)
      We present the analytical solutions for the evolution of matter density perturbations, for a model with a constant dark energy equation of state w but when the effects of the dark energy (DE) perturbations are properly ...
    • Reconstruction of the null-test for the matter density perturbations 
      Nesseris, Savvas; Sapone, Doménico; García Bellido, Juan (American Physical Society, 2015)
      We systematically study the null-test for the growth rate data first presented in [S. Nesseris and D. Sapone, arXiv:1409.3697.] and we reconstruct it using various combinations of data sets, such as the fσ8 and HðzÞ or ...