Publication date: Sep 1990
Abstract:
The static region of the Schwarzschild-de Sitter spacetime is studied from the point of view of the optical reference geometry introduced by Abramowicz et al. (1988). It is shown that, in this geometry, the geodesic curvature of circles r = const is independent of the parameter Lambda (cosmological constant) of the spacetime. The consequence of this fact for circular photon orbits is discussed.
Authors:
Stuchlik, Zdenek;