Can dark energy explain the observed outflow in galaxy clusters?
  Recent observations of the Virgo cluster and the Local Group suggested that
some galaxies are flowing out from their parent cluster. This may be the
signature that dark energy (DE) acts significantly also on small cosmological
scales. By means of direct N-body simulations we performed several simulations,
in which the effect of DE and gravity are taken into account, aiming to
determine whether DE can produce an outflow of galaxies compatible with
observations. Comparing the different simulations, our results suggest that the
observed outflow of galaxies is likely due to the local effect of DE.
