On the measurement for the speed of gravity

作     者：Linxia Liu Chenggang Shao 

作者机构：Department of Electronics and Communication EngineeringHenan Mechanical and Electrical Engineering College School of Physics Huazhong University of Science and Technology 

出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)

年 卷 期：2014年第59卷第4期

页      面：828-832页

核心收录：

学科分类：08[工学] 080101[工学-一般力学与力学基础] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(11275057) 

主　　题：重力定律 速度 广义相对论 牛顿定律 测量 引力场 爱因斯坦 重力潮汐 

摘      要：Newton’s law of gravity is a theory of instantaneous action at a ***,Einstein’s general relativity states that the speed of gravity equals the speed of light,which is ***,it is a worthy problem to discuss if Newton’s law of gravity needs modification,when studying and observing the gravitational *** this paper,it is shown that the Newton’s law of gravity is fully applicable in the framework of general *** on the post-Newtonian approximation,we find that the observable effect for the speed of gravity is irrelevant to the velocity of a moving source,but it is dependent on its *** general,the effect of the speed of gravity is so weak that today’s any astronomical observations,including the sun tidal observations,can not confirm that the gravitational field travels at the speed of light.