Astronomical units and constants in the general relativity framework |
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| Authors: | Victor A Brumberg Pierre Bretagnon Bernard Guinot |
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| Institution: | (1) Bureau des Longitudes, 75014 Paris, France;(2) Observatoire de Paris, 75014 Paris, France |
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| Abstract: | An attempt is made to analyze the existing system of astronomical constants within the general relativity theory (GRT) framework. The general conclusion is that, to avoid any confusion in the GRT compatible interpretation of units and constants, one should give precisely, with full post-Newtonian accuracy, the expressions of the metric forms describing the astronomical barycentric and geocentric reference systems used, for example, in IERS analysis of observations.Institute of Applied Astronomy, St. Petersburg, 197042, Russia |
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| Keywords: | Astronomical units astronomical constants Earth's rotation reference systems general relativity |
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