Publication date: Dec 2017
Abstract:
In this work we investigate the motion of free particle in the field of strongly gravitating object which is embedded into dust cosmological background. We use newly obtained exact solution of Einstein equations in comoving coordinates for the system under consideration in case of zero spatial curvature. Observable velocity of the particle moving relatively to the observer comoving with cosmological expansion is found from geodesic equations.
Authors:
Jalůvková, Pavlína; Kopteva, Elena; Stuchlík, Zdeněk;