Quantifying Astrophysical Uncertainties on Dark Matter Direct Detection
  Results
  We attempt to estimate the uncertainty in the constraints on the spin
independent dark matter-nucleon cross section due to our lack of knowledge of
the dark matter phase space in the galaxy. We fit the density of dark matter
before investigating the possible solutions of the Jeans equation compatible
with those fits in order to understand what velocity dispersions we might
expect at the solar radius. We take into account the possibility of
non-Maxwellian velocity distributions and the possible presence of a dark disk.
Combining all these effects, we still find that the uncertainty in the
interpretation of direct detection experiments for high (>100 GeV) mass dark
matter candidates is less than an order of magnitude in cross section.
