391 citations · 2.6k across the 85 of their papers we have counts for
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astro-ph.CO2012
Celestial dynamics and astrometry in expanding universe
Sergei Kopeikin
The mathematical concept of the Newtonian limit of Einstein's field equations in the expanding Friedmann universe is formulated. The geodesic equations of motion of planets and lig…
gr-qc2012★ 41 cited
Celestial Ephemerides in an Expanding Universe
Sergei Kopeikin
Post-Newtonian theory was instrumental in conducting the critical experimental tests of general relativity and in building the astronomical ephemerides of celestial bodies in the s…