Resumen
In this work we put constraints on a quintessence dark energy model that interacts with the dark matter fluid. By assuming a DE model described by the parameterization w(a)=w_{0}+w_{1} ln_{β}(a) and that the dark fluids follows the relation ρ_{m}/ρ_{x}=a^{-ξ} we use the most recent data of SN Ia, BAO, CMB and H(z) to put constraints on the EoS parameters w_{0}, w_{1} and Ω_{m,0} for selected values of β and ξ parameters. Although the standard λCDM model is in good agreement with our results, we show that scenarios with interaction in the dark sector can not be ruled out by currently available data.
