Dynamical system analysis and observational constraints of cosmological models in mimetic gravity
Keywords: dark matter, dark energy, Cosmological datasets, Mimetic gravity, Alternative theories of gravity
Abstract
We study the dynamics of homogeneous and isotropic FriedmannâLemaîtreâRobertsonâWalker cosmological models with positive spatial curvature within the context of mimetic gravity theory by employing dynamical system techniques. Our analysis yields phase-space trajectories that describe physically relevant solutions, capturing various stages of cosmic evolution. We also employ Bayesian statistical analysis to constrain the cosmological parameters of the models, utilizing data from Type Ia supernovae and Hubble parameter data sets. The observational data sets provide support for the viability of mimetic gravity models, which can effectively describe the late-time accelerated expansion of the universe.
Más información
| Título según WOS: | Dynamical system analysis and observational constraints of cosmological models in mimetic gravity |
| Título según SCOPUS: | Dynamical system analysis and observational constraints of cosmological models in mimetic gravity |
| Título de la Revista: | Physics of the Dark Universe |
| Volumen: | 46 |
| Editorial: | Elsevier B.V. |
| Fecha de publicación: | 2024 |
| Idioma: | English |
| DOI: |
10.1016/j.dark.2024.101650 |
| Notas: | ISI, SCOPUS |