Publication date: Jun 1983
Abstract:
Due to the present indications of the existence of a non-zero
cosmological constant, some aspects of the influence of a Lambda not
equal to zero on the character of test-particle motion in black-hole
backgrounds are discussed. Equations of motion of electrically charged
particles and magnetic monopoles are written in the most general Kerr-
Newman-de Sitter dyon background. For the Kerr-de Sitter spacetime, the
latitudinal motion is examined in detail by using the ‚Chinese boxes‘
technique. The radial motion in the Schwarzschild-de Sitter background
is considered with attention devoted to the existence and stability of
circular orbits and to the properties of purely radial trajectories.
Finally, the possibility of constructing an Einstein-Strauss-de Sitter
model of the Universe (i.e. a model of Schwarzschild-de Sitter
condensations in the Friedman Universe with a non-zero Lambda-term) is
discussed.
Authors:
Stuchlik, Z.;