A probe of interacting dark energy with redshift space distortions
  The imprint of interacting dark energy (IDE) needs to be correctly identified
in order to avoid bias in constraints on IDE, on the largest scales. This paper
investigates the large-scale imprint of IDE in redshift space distortions. The
results suggest that, for a constant dark energy equation of state parameter,
an IDE model where the dark energy transfer rate is proportional to the dark
energy density, exhibits an alternating positive-negative effect in the
redshift space distortions angular power spectrum -- which varies with respect
to redshift z. The results also suggest that the redshift space distortions can
be used to distinguish IDE models at low z ~ 0.1. Moreover, the angular power
spectrum coss-correlations appear to hold the potential to be a viable tool for
detecting the imprint of IDE, at z < 0.7.
