Statefinder Revisited

Abstract

The quality of supernova data will dramatically increase in the next few years by new experiments that will add high-redshift supernova to the currently known ones. In order to use this new data to discriminate between different dark energy models, the statefinder diagnostic was suggested and investigated by Alam et al. in the light of the proposed SuperNova Acceleration Probe (SNAP) satellite. By making use of the same procedure presented by these authors, we compare their analyzes with ours, which shows a more realistic supernovae redshift distribution and do not assume that the intercept is known. We also analyzed the behavior of the statefinder pair {r,s} and the alternative pair {s,q} in the presence of offset errors.

Cited by in corpus (5)

• Statefinder Diagnosis for Ricci Dark Energy
• Statefinder Diagnostic and w-w' Analysis for the Agegraphic Dark Energy Models without and with Interaction
• Hubble parameter reconstruction from a principal component analysis: minimizing the bias
• A closer look at interacting dark energy with statefinder hierarchy and growth rate of structure
• Statefinder analysis of universe models with a viscous cosmic fluid and a fluid with a non-linear equation of state