Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2011-12-31
Physical Review D 83, 104019 (2011)
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pages, 2 figures
Scientific paper
The post Newtonian parameter is considered in the Chameleon-Brans-Dicke frame. In the first step, the general form of this parameter and also effective gravitational constant is obtained. An arbitrary function for $f(\Phi)$, which indicates the coupling between matter and scalar field, is introduced to investigate validity of solar system constraint. It is shown that Chameleon-Brans-Dicke model can satisfy the solar system constraint and gives us an $\omega$ parameter of order $10^4$, which is in comparable to the constraint which has been indicated in {\cite{17-a}}.
Mohammadi Abolhassan
Saaidi Khaled
Sheikhahmadi Haidar
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jamil
Gamma parameter post Newtonian approach, is one powerfool critrerion of GR accuracy, which very well investigated in Haidar sheikhahmadi.et al paper.
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