A Recipe to Probe Alternative Theories of Gravitation via N-body
  Numerical Simulations. I. Spiral Galaxies
  A way to probe alternative theories of gravitation is to study if they could
account for the structures of the universe. We then modified the well-known
Gadget-2 code to probe alternative theories of gravitation through galactic
dynamics. As an application, we simulate the evolution of spiral galaxies to
probe alternative theories of gravitation whose weak field limits have a
Yukawa-like gravitational potential. These simulations show that galactic
dynamics can be used to constrain the parameters associated with alternative
theories of gravitation. It is worth stressing that the recipe given in the
present study can be applied to any other alternative theory of gravitation in
which the superposition principle is valid.
