Master Equation – Parent 2 – v1.2.2 An Emergent Medium Interpretation of Galactic Rotation Curves within the MyominAung Photon-Sea (MATE) Framework

This paper examines the long-standing problem of flat galactic rotation curves from a non-particle-based perspective within the MyominAung Photon-Sea Theory (MATE). Instead of invoking non-luminous dark matter halos, the analysis explores the possibility that galactic-scale kinematic anomalies arise from collective, low-frequency dynamics of a universal photon-sea vacuum medium.In the MATE framework, the vacuum behaves as a superfluid-like medium near its ground-frequency state. Rotating baryonic systems, such as spiral galaxies, can induce large-scale vortex-like entrainment patterns in this medium. These collective modes effectively transport angular momentum beyond the visible mass distribution, leading to approximately flat rotation curves at large galactocentric radii.Using representative parameters for the Milky Way, the emergent velocity scale produced by photon-sea entrainment is shown to be consistent in magnitude with observed stellar rotation speeds. The analysis further demonstrates that the empirical Tully–Fisher relation arises naturally from the coupling between baryonic mass and the medium’s emergent velocity scale, without requiring fine-tuned dark matter distributions.This work does not claim to falsify dark matter models, which remain phenomenologically successful. Rather, it provides an alternative physical interpretation of the same observational data, serving as a consistency and plausibility study within a frequency-based, medium-oriented gravitational framework. The paper is intended as a subsidiary phenomenological contribution supporting the broader master-equation formulation of MATE.