The Parametrized Equations of Light Ray in Multiple Systems
Yanxiang Gong · Journal of Hebei Normal University · 2008
The parametrized second-order post-Newtonina metrics of photon in Multiple System were taken into consideration,there were two post-Newtonian parameters(γ and β) in the relativistic celestial mechanics with PPN parameters.According to previous work and satisfying requirement of experiments in solar system,the study introduced a new parameter in metric tensor gij.So there were three parameters(γ,β and e) in equations of light ray which was deduced for first time.The Post-Newtonian and second-order Post-Newtonian equations of light ray in solar system have been deduced from metric tensor by using a kind of iterative method.When terms higher than 1/c4 were neglected,those equations agreed with post-Newtonina equations got by Will.