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In this work we have used the recent cosmic chronometer data along with the latest estimation of the local Hubble parameter value, H₀ at 2. 4% precision as well as the standard dark energy probes, such as the Supernovae Type Ia, baryon acoustic oscillation distance measurements, and cosmic microwave background measurements (PlanckTT+lowP) to constrain a dark energy model where the dark energy is allowed to interact with the dark matter. A general equation of state of dark energy parametrized by a dimensionless parameter ``'' is utilized. From our analysis, we find that the interaction is compatible with zero within the 1 confidence limit. We also show that the same evolution history can be reproduced by a small pressure of the dark matter.
Yang et al. (Tue,) studied this question.