Testing and selection cosmological models with dark energy

Abstract

It is described dynamics of a large class of accelerating cosmological models in terms of dynamical systems of the Newtonian type. The evolution of the models is reduced to the motion of a particle in a potential well parameterized by the scale factor. This potential function can be reconstructed from distant supernovae type Ia data and many cosmological models represented in terms of the potential becomes in a good agreement with current observational data. It is proposed to use the information criteria to overcome this degeneracy within a class of A) dark energy models and B) simple models basing on modification of the FRW equation. Two class of models can be recommended by the Akaike (AIC) and Schwarz (BIC) information criteria: the phantom and $\Lambda$CDM models.

Talk at Albert Einstein Century International Conference at Palais de l'Unesco, Paris, France, 18-23 July 2005; to appear in the Proceedings; AIP style files included, 6 pages, 2 figures

Cited by in corpus (11)

• Dark Energy and Dark Matter from an additional adiabatic fluid
• Observational Constraints to Ricci Dark Energy Model by Using: SN, BAO, OHD, fgas Data Sets
• Lorentz Invariance Violation induced time delays in GRBs in different cosmological models
• Growth of matter overdensities in non-minimal torsion-matter coupling theories
• From model dynamics to oscillating dark energy parameterisation
• Phantom cosmology as a scattering process
• Cosmological zoo -- accelerating models with dark energy
• Second order invariants and holography
• Modeling dark energy through an Ising fluid with network interactions
• Paths of Friedmann-Robertson-Walker brane models
• Assessing the Robustness of the CPL Parametrization to Basis and Prior Variations: Insights from DESI DR2 BAO Data