Rotating Galactic Magnetic Fields & Flat Rotation Curves

The flatness of galactic rotation curves has long been attributed to dark matter halos, yet no direct evidence for such particles exists. Here we present a falsifiable alternative grounded in the Relativistic Galactic Magnetism Framework: magnetic phase locking. In this model, a coherently rotating galactic magnetic field, maintained by flux freezing in the interstellar medium, amplified through dynamo action, and episodically reinforced by relativistic jets from Wolf-Rayet hypernovae, exerts Lorentz torques on magnetized stars. These torques induce a transition from Keplerian decline to magnetically regulated orbital motion beyond a critical radius of ~300 parsecs. We show quantitatively that observed microgauss-level fields are sufficient to produce terminal stellar velocities without invoking unseen mass. Unlike prior approaches restricted to gas dynamics, this mechanism applies directly to stellar populations and yields distinct, falsifiable predictions: (i) velocity dispersion spikes near the transition radius, (ii) spectral-type–dependent phase-locking signatures, and (iii) rotational anomalies detectable in GAIA DR3, MaNGA IFU surveys, and polarized synchrotron maps. By reframing the rotation curve anomaly as a manifestation of large-scale electromagnetic coupling, this work provides a predictive and observationally testable alternative to dark matter in galactic dynamics.