Solar System constraints on local dark matter density
  We study how the classical tests of general relativity are modified by the presence of a subdominant dark matter halo in the solar system. We use a general formalism to calculate the corrected expression for the relevant parameters, and obtain bound plots for the mean energy density and the dimension of the dark matter halo. Our results seem to favor a density profile peaked at the center of the solar system. 
Giuseppe De Risi, Tiberiu Harko, Francisco S. N. Lobo
gr-qc astro-ph.SR