A new method for reconstructing the density distribution of matter in   the disks of spiral galaxies from the rotation velocity curve in it
  In this paper we propose a new method for reconstructing the surface density of matter in flat disks of spiral galaxies. The surface density is expressed through observational rotation velocity curves of visible matter in the disks of spiral galaxies. The new method is not based on quadrature of special functions. The found solution is used for processing and analysis of observational data from several spiral galaxies. The new method can be used to more accurately estimate the amount of dark matter in spiral galaxies. 
Alexander Shatskiy, Igor Novikov, Olga K. Sil'chenko, Jakob Hansen,   Ivan Yu. Katkov
astro-ph.GA