1995/12/28 by Rue-Ron Hsu, Bokai Yang, Chin-Rong Lee
Physics and Astronomy · #hep-th #gr-qc
published as Chin.J.Phys. 34 (1996) 1285-1297 · 22 pages, use Latex
arxiv created 1995/12/28 · arxiv updated 2009/11/30
We study the post-Newtonian limit of a generalized dilaton gravity in which gravity is coupled to dilaton and eletromagnetic fields. The field equations are derived using the post-Newtonian scheme, and the approximate solution is presented for a point mass with electric and dilaton charges. The result indicates that the dilaton effect can be detected, in post-Newtonian level, using a charged test particle but not a neutral one. We have also checked that the approximate solution is indeed consistent with the weak field expansion of charged dilaton black hole solution in the harmonic coordinate.