The deviation of light path in Einstein–Brans–Dicke theory
Source: Astrophysics and Space Science, Volume 295, Number 4, February 2005 , pp. 493-505(13)
Abstract:Both Jordan–Brans–Dicke (shortened JBD) theory and Brans–Dicke theory in the Einstein’s frame (shortened EBD) are treated as Brans–Dicke theory. However, we learn that only Pauli metric represents the massless spin-two graviton and thus, should be identified as physical. If one just considers the weak field approximation and Newtonian limit, EBD theory gives the same results with Einstein’s general relativity. So, it is necessary to consider strong field effects and cosmological model. The purpose of this paper is to find the exact spherically symmetric metric in the strong field situation, and deduce the deviation of light path in EBD theory.
Document Type: Research Article
Publication date: February 1, 2005