Title: Tidal streams and dwarf companions in isolated elliptical galaxies

Abstract:
Isolated elliptical galaxies are interesting creatures. Despite their isolation, many isolated 
ellipticals have tidally interacting dwarf companions, with obvious tidal tails. We recently 
uncovered a dwarf companion exhibiting both tidal tails and multiple cores, evidence for 
hierarchical merging at two different scales in the same system. The lower mass merger is 
apparently occuring at a smaller mass scale than anything previously observed. What does this 
mean in terms of LCDM? What does this mean in terms of the evolution of the host galaxies?