Exploring Properties of Dark and Visible Mass Distribution on Different   Scales in the Universe
  In this short note we discuss recent observation of linear correlation on log-log scale between distribution of dark and visible mass in gravitationally bound systems. The coefficient of such correlation appears to be essentially the same for various systems of dramatically different scales such as spiral galaxies of different luminosities and galaxy clusters. We briefly touch possible interpretations of this observation and implications for the mass of dark matter particle. 
Yuriy Mishchenko, Chung-Ryong Ji