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Galaxy Dynamics Predictions in the Nonsymmetric Gravitational Theory | | J. W. Moffat
; I. Yu. Sokolov
; | | Date: |
27 Sep 1995 | | Journal: | Phys.Lett. B378 (1996) 59-67 | | Subject: | astro-ph gr-qc | | Abstract: | In the weak field approximation, the nonsymmetric gravitational theory (NGT) has, in addition to the Newtonian gravitational potential, a Yukawa-like potential produced by the exchange of a spin $1^+$ boson between fermions. If the range $r_0=mu^{-1}$ is $25$ kpc, then this additional potential due to the interaction with matter in the halos of galaxies can explain the flat rotation curves of galaxies and the Tully-Fisher law ($Lsim v^4$) without the dark matter hypothesis. Possible fits to clusters of galaxies and gravitational lensing observations are discussed. The results are based on a linear approximation to a new perturbatively consistent version of the NGT field equations, which does not violate the weak equivalence principle. | | Source: | arXiv, astro-ph/9509143 | | Services: | Forum | Review | PDF | Favorites | |
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