Can you elaborate on this issue?
First, while your model suggests that the forces involved galaxy rotation would be different than that predicted by Newtonian gravity, is it still acceptable to use Newtonian mechanics to describe the rotation of stars in the new gravity field?
In other words, the galaxy rotation curves are modeled using FN = ma, where FN is Newtonian gravity. Can we simply replace Newtonian gravity with ``Lowey gravity'' (FL, perhaps) and solve for a new rotation curve?
Second, existing galaxy rotation curves are modeled by assuming that most of the mass of the galaxy is in the ``centre bulge''. Is this assumption still valid?