Relativity and Cosmology


The Direct Contradiction Between Two Popular Hypotheses -- Cosmic Acceleration / Quintessence and Dark Matter, and Its Implications

Authors: Roger Ellman

Recent distance determinations to Type Ia supernovae [ SNe Ia ] by new means exceed the Hubble distance by 10 - 15%.1,2 The explanation that has been offered is an "anti-gravity effect" accelerating the universe' expansion. The effect is attributed to some unknown substance pervading cosmological space, a modern variant on the Ancients' fifth essence, "quintessence". In other research 3, the study of galaxies and the larger cosmic structures of groups of galaxies as rotating systems, with their concomitant balance of gravitational attraction [G.M.m/R2] and centripetal force [m.V2/R], has disclosed a component of the gravitational attraction that cannot be accounted for. It is inferred that a halo of "dark matter" pervades the galaxies and supplies the unaccounted for gravitation. Therefore, we are confronted with the contradiction: [1] the SNe Ia data with its hypothesis that the cosmos is operated on by an "anti-gravity effect", and [2] the rotation curves data which indicates that an additional gravitational effect is operating, not an anti-gravitational one. The two hypotheses are mutually exclusive. At least one is completely incorrect [the hypothesis, not the data] and quite possibly both hypotheses are wrong. That being the case, it is essential that alternative explanations for the SNe Ia data and the rotation curves data be sought. The status of such alternatives is reviewed and a new alternative, based on NASA reported observations of long-term satellite behavior, is suggested.

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Submission history

[v1] 25 Feb 2007

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