Publication date: Feb 1990
Abstract:
The authors study the radial motion along null geodesics in the
Reissner-Nordström-de Sitter and Kerr-de Sitter space-times. They
analyze the properties of the effective potential and discuss circular
orbits. They find that the radii of circular geodesics in the
Reissner-Nordström-de Sitter space-time do not depend on the
cosmological constant, and explain this property using the optical
reference geometry. In addition, the authors describe the unusual
consequences of the interplay between rotation of the source and
cosmological repulsion.
Authors:
Stuchlík, Z.; Calvani, M.;