Celestial dynamics and astrometry in expanding universe
arXiv:1212.5278
Abstract
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 light are derived and compared.
arXiv comment1 page, invited talk at Joint Discussion 7 ("Space-Time Reference Systems for Future Research"), IAU General Assembly in Beijing (2012)