White Dwarf and Neutron Star Interior Solutions in the Nonsymmetric Gravitational Theory
Abstract
Spherically symmetric, static, numerical solutions of the field equations of nonsymmetric gravitational theory (NGT) for dense, homogeneous, cold matter with a stiff equation of state are presented in graphic form. As in Einstein's general relativity theory (GRT), two types of stable objects are predicted, corresponding to white dwarfs and neutron stars. The NGT makes these less stable as it effectively softens the equation of state, decreasing their mass and radius. The requirement of stability sets upper limits on the strength of the coupling of ordinary matter (protons, neutrons, and electrons) to NGT forces, and on the total NGT charge of such stars, which rule out that kind of matter as a source of NGT effects strong enough to account for the discrepancies between observed periastron shifts in some mainsequence binary systems and the predictions of Einstein's theory.
 Publication:

The Astrophysical Journal
 Pub Date:
 May 1991
 DOI:
 10.1086/169969
 Bibcode:
 1991ApJ...372..241C
 Keywords:

 Computational Astrophysics;
 Gravitation Theory;
 Neutron Stars;
 Stellar Interiors;
 White Dwarf Stars;
 Binary Stars;
 Main Sequence Stars;
 Numerical Integration;
 Relativistic Theory;
 Astrophysics;
 GRAVITATION;
 STARS: INTERIORS;
 STARS: NEUTRON;
 STARS: WHITE DWARFS