Cosmological constraints on Agegraphic dark energy in DGP braneworld gravity

TL;DR

This paper investigates how agegraphic dark energy models behave within DGP braneworld cosmology, using observational data to constrain model parameters and determine the universe's evolution.

Contribution

It introduces a study of original and new agegraphic dark energy models in DGP cosmology, constrained by observational data, highlighting the role of the parameter n in model differentiation.

Findings

Universe enters an agegraphic dark energy dominated phase

Parameter n effectively distinguishes between models

Models are consistent with observational data

Abstract

A proposal to study the original and new agegraphic dark energy in DGP braneworld cosmology is presented in this work. To verify our model with the observational data, the model is constrained by a variety of independent measurements such as Hubble parameter, cosmic microwave background anisotropies, and baryon acoustic oscillation peaks. The best fitting procedure shows the effectiveness of agegraphic parameter $n$ in distinguishing between the original and new agegraphic dark energy scenarios and subsequent cosmological findings. In particular, the result shows that in both scenarios, our universe enters an agegraphic dark energy dominated phase.