Galaxy Rotation Curves Without Dark Matter from a Baryon-Sourced Suppression Field

Galaxy rotation curves exhibit a well-known deviation from Newtonian expectations, traditionally attributed to non-baryonic dark matter halos. In this work, we show that the full radial structure of observed rotation curves, including inner Newtonian behavior, enhanced intermediate velocities, and normalization at large radii, emerges naturally from a baryon-sourced suppression field. Using an updated exponential suppression formulation, rotation curves are predicted directly from observed baryonic mass distributions, with no dark matter, no halo profiles, no parameter fitting, and no auxiliary corrections. The resulting predictions are compared against SPARC galaxy data, demonstrating that the observed rotation curve phenomenology can be explained without invoking non-baryonic matter components.