2018/08/16 by Bryan Sagredo, Sagredo, Bryan, Javier Silva Lafaurie +4
Physics and Astronomy · #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Scientific Research and Discoveries #astro-ph.CO
paper · pdf · doi:10.48550/arxiv.1808.05660
13 pages, 4 figures, 9 tables
arxiv created 2018/08/16 · arxiv updated 2018/08/20
In this work we perform an analysis on the recently proposed conjoined cosmic growth and cosmic expansion diagram [1] to compare several dark energy models using the Figure of Merit showed in [2], which consists in the inverse of the 1σ confidence region in the fσ8(z)-H(z) plot. Our analysis also consists of comparing the models by performing different statistical criteria: Bayes factor [3], the Bayesian Information Criteria [4] and the Akaike Information Criterion [5]. We also developed a 3-dimensional Figure of Merit to account simultaneously for the errors on the growth rate and the Hubble parameter. The main idea is to consider several cosmological models and compare them with the different statistical criteria in order to highlight the differences and the accuracies of each single criterion.