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Motion of a test body in the presence of an external scalar field which respects the weak equivalence principle

J. P. Mbelek
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Abstract

It is shown that the main contribution to the rotational curve of a spiral galaxy may be due essentially to the interaction, in the general relativistic spacetime, of the galactic matter with a very light long range scalar field which respects the weak equivalence principle. The comparison of the theoretical results with 23 spiral galaxy rotation curves shows a good agreement between our proposal and observations.

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J. P. Mbelek. 2004-02-19. Motion of a test body in the presence of an external scalar field which respects the weak equivalence principle. https://arxiv.org/abs/gr-qc/0402084

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