Constraining interacting dark energy models with latest cosmological observations

TL;DR

This study uses recent cosmological data to test interacting dark energy models, finding no strong evidence for interaction and only partial relief of the Hubble constant tension.

Contribution

It provides updated constraints on interacting dark energy models using the latest observational data, addressing the H_0 tension.

Findings

No significant evidence for dark energy-dark matter interaction.

Partial alleviation of the H_0 tension.

Constraints consistent with non-interacting dark energy models.

Abstract

The local measurement of $H_0$ is in tension with the prediction of $\Lambda$CDM model based on the Planck data. This tension may imply that dark energy is strengthened in the late-time Universe. We employ the latest cosmological observations on CMB, BAO, LSS, SNe, $H(z)$ and $H_0$ to constrain several interacting dark energy models. Our results show no significant indications for the interaction between dark energy and dark matter. The $H_0$ tension can be moderately alleviated, but not totally released.