Interacting Agegraphic Dark Energy Model in DGP Braneworld Cosmology: Dynamical System Approach
| Autor: | Arvin Ravanpak, Golnaz Farpour Fadakar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Nuclear and High Energy Physics 010308 nuclear & particles physics FOS: Physical sciences General Physics and Astronomy Astronomy and Astrophysics General Relativity and Quantum Cosmology (gr-qc) Astrophysics::Cosmology and Extragalactic Astrophysics Dynamical system 01 natural sciences Cosmology General Relativity and Quantum Cosmology Theoretical physics 0103 physical sciences Dark energy Brane 010303 astronomy & astrophysics |
| Popis: | A proposal to study the effect of interaction in an agegraphic dark energy model in DGP brane-world cosmology is presented in this paper. After explaining the details, we proceed to apply the dynamical system approach to the model to analyze its stability. We first constrain model parameters with a variety of independent observational data such as cosmic microwave background anisotropies, baryon acoustic oscillation peaks and observational Hubble data. Then, we obtain the critical points related to different cosmological epochs. In particular, we conclude that in the presence of interaction, dark energy dominated era could be a stable point if model parameters n and [Formula: see text], obey a given constraint. Also, big rip singularity is avoidable in this model. |
| Databáze: | OpenAIRE |
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