The Higher Inertia of the Sun

The way that our spiral galaxy is spinning, we've got these vector potentials all interrelating. Is it possible that there's a coupling going on with the stars in our galaxy because of their motion that could explain the flat galactic rotation curves? Our Sun, for example, have a higher inertia because of its coupling to all of the other stars in the galaxy. Could that model this basically uniform velocity of stars in our rotating spiral galaxy?