The General Method for Fixing the Gauges of Relativistic Astronomical Reference Systems |
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| Authors: | Jin-He Tao |
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| Institution: | (1) Department of Mathematics and Physics, Zhongyuan University of Technology, Zhengzhou, 450007, China;(2) P.R. China Purple Mountain Observatory, The Chinese Academy of Sciences, Nanjing, 210008, China;(3) P.R. China National Astronomical Observatories, The Chinese Academy of Sciences, Beijing, China |
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| Abstract: | This article applies a new scheme of the first post-Newtonian theory (Damour et al., 1991–1994) to the problem of gauge in
relativistic reference systems. Choosing and fixing gauge are necessary when the precision of time measurement and application
needs to reach the 2PN level (10−16 or better). We present a general method for fixing the gauges of both the global and local coordinate systems, and for determining
the expressions of gravitational potentials and coordinate transformations. The results relevant are consistent with the newest
IAU resolutions, therefore they can be applied to astronomical practice. |
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| Keywords: | relativity reference systems gauge |
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