Magnetohydrodynamic Boundary Stress and Galactic Rotation Curve Anomalies

This project investigates how magnetic boundary stress in galactic plasma relates to the velocity anomalies observed in disk galaxy rotation curves. The study applies a standardized magnetohydrodynamic framework to the SPARC dataset of 175 galaxies and evaluates whether boundary‑layer plasma behavior can account for the residual differences between observed rotation speeds and baryonic predictions. The analysis identifies a statistically significant relationship between the plasma instability parameter and the velocity residuals, suggesting that boundary‑layer magnetic dissipation contributes to the structure of galactic rotation curves. The report outlines a three‑part framework based on structural equilibrium, magnetic diffusion, and residual coupling, and provides an empirical visualization of the relationship between boundary stress and observed kinematic deviations. All data are derived from publicly available SPARC material, and regression scripts will be uploaded to support transparency and reproducibility.