Testing the phenomenological interacting dark energy model with gamma-ray bursts and Pantheon+ type Ia supernovae

TL;DR

This study uses gamma-ray bursts and Pantheon+ supernova data to test an interacting dark energy model, finding it alleviates the cosmic coincidence and age problems and aligns with local H0 measurements.

Contribution

It provides observational constraints on a phenomenological interacting dark energy model using GRBs and SNe Ia data, showing its advantages over the standard ΛCDM model.

Findings

Energy transfer from dark energy to dark matter is indicated.

The model's H0 value agrees with SH0ES measurements.

It predicts a cosmic age greater than ΛCDM, alleviating the age problem.

Abstract

In this paper, we utilize recent observational data from gamma-ray bursts (GRBs) and Pantheon+ supernovae Ia (SNe Ia) sample to explore the interacting dark energy (IDE) model in a phenomenological scenario. Results from GRBs alone, SNe Ia and GRBs+SNe Ia indicate that the energy is transferred from dark energy to dark matter and the coincidence problem is alleviated. The value of $H_0$ from GRBs+SNe Ia in the IDE scenario shows agreement with the SH0ES measurement. Considering the age estimate of the quasar APM 08279+5255 at $z = 3.91$, we find that the phenomenological IDE scenario can predict a cosmic age greater than that of the $\Lambda$CDM model, thus the cosmic age problem can be alleviated.