Abstract
A phenomenological model is presented for the conserved fermion-number current in the nonsymmetric gravitational theory (NGT) based on the numbers of stable protons, neutrons, neutrinos, and cosmions (weakly interacting massive particles). By a suitable choice of the coupling constants, it is shown that the NGT is consistent with terrestrial observations and with the data for the solar system. A fit to the data of seven nondegenerate binary systems, including the data for DI Herculis and AS Cam, is given. The overall results are in accord with a solution of the problem of the cosmological missing dark matter. Agreement is also achieved with the data for the pulsar system PSR 1913 + 16 and the close cataclysmic binary system 4U 1820-30, involving gravitational radiation.
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