Generalized Einstein theory on solar and galactic scales
- 15 July 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 48 (2) , 578-582
- https://doi.org/10.1103/physrevd.48.578
Abstract
We study a generalized Einstein theory with the following two criteria: (i) on the solar scale, it must be consistent with the classical tests of general relativity; (ii) on the galactic scale, the gravitational potential is a sum of Newtonian and Yukawa potentials so that it may explain the flat rotation curves of spiral galaxies. Under these criteria we find that such a generalized Einstein action must include at least one scalar field and one vector field as well as the quadratic term of the scalar curvature.Keywords
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