  We apply the modified acceleration law obtained from Einstein gravity coupled
explaining galaxy rotation curves without exotic dark matter. Our sample of
galaxies includes low surface brightness (LSB) and high surface brightness
(HSB) galaxies, and an elliptical galaxy. In those cases where photometric data
are available, a best fit via the single parameter (M/L)_{stars} to the
luminosity of the gaseous (HI plus He) and luminous stellar disks is obtained.
Additionally, a best fit to the rotation curves of galaxies is obtained in
terms of a parametric mass distribution (independent of luminosity
observations) -- a two parameter fit to the total galactic mass, (or
mass-to-light ratio M/L), and a core radius associated with a model of the
galaxy cores using a nonlinear least-squares fitting routine including
estimated errors. The fits are compared to those obtained using Milgrom's
phenomenological MOND model and to the predictions of the Newtonian-Kepler
acceleration law.
