A Modified Model of the Universe Shows How Acceleration Changes Galaxy Dynamics

Based on the hypothesis that the combined matter and radiation energy of the universe is balanced by an equivalent amount of negative gravitational energy, a novel formulation of the Friedmann equation is examined. The hypothesis opens new avenues for studying the evolution of the universe. The expansion, initiated by the event of a vacuum fluctuation, is driven by the continuous occurrence of new positron-electron pairs. The current acceleration of expansion, g_exp = 1,066·10^-11 m/s², emerges as a result of the study. It is mathematically shown that g_exp causes a cosmic Coriolis effect responsible for the rotary velocity deviations in the galaxies. The effect eliminates the need for dark matter. The MOND theory is explained on a purely physical basis.