Age problem in holographic dark energy

TL;DR

This paper investigates whether a holographic dark energy model can resolve the universe's age problem by fitting observational data and testing against old high redshift objects, demonstrating compatibility with certain ancient objects.

Contribution

It introduces a holographic dark energy model and tests its ability to address the universe's age problem using observational constraints and high redshift objects.

Findings

The model can account for the age of the old quasar at z=3.91.

Constraints from SNIa, CMB, and BAO data support the model.

The age problem is alleviated within this holographic dark energy framework.

Abstract

We study the age problem of the universe with the holographic DE model introduced in [21], and test the model with some known old high redshift objects (OHRO). The parameters of the model have been constrained using the SNIa, CMB and BAO data set. We found that the age of the old quasar APM 08 279+5255 at z = 3.91 can be described by the model.