A correlation between the amount of dark matter in elliptical galaxies
  and their shape
  We discuss the correlation between the dark matter content of elliptical
galaxies and their ellipticities. We then explore a mechanism for which the
correlation would emerge naturally. Such mechanism leads to identifying the
dark matter particles to gravitons. A similar mechanism is known in Quantum
Chromodynamics (QCD) and is essential to our understanding of the mass and
structure of baryonic matter.
