Limits on the parameters of the equation of state for interacting dark
  energy
  Under the assumption that cold dark matter and dark energy interact with each
other through a small coupling term, $Q$, we constrain the parameter space of
the equation of state $w$ of those dark energy fields whose variation of the
field since last scattering do not exceed Planck's mass. We use three
parameterizations of $w$ and two different expressions for $Q$. Our work
extends previous ones.
