Publication date: Mar 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.;