Holographic dark energy: constraints on the interaction from diverse observational data sets

Understand

The present work deals with holographic dark energy models with Hubble horizon as the infra-red cut-off.

• The interaction rate between dark energy and dark matter has been reconstructed with three different choices of the interaction term.
• It is shown that the coupling parameter of the interaction term should evolve with redshift to allow the successful transition from decelerated to accelerated phase of expansion.
• Constraints on the model parameters are obtained from Markov Chain Monte Carlo (MCMC) analysis using the supernova distance modulus data and observational measurements of the Hubble parameter.