Publication date: Dec 2005
Abstract:
Equilibrium conditions and spin dynamics of spinning test particles are
discussed in the stationary and axially symmetric Kerr-de Sitter
black-hole or naked-singularity spacetimes. The general equilibrium
conditions are established, but due to their great complexity, the
detailed discussion of the equilibrium conditions and spin dynamics is
presented only in the simple and most relevant case of equilibrium
positions in the equatorial plane of the spacetimes. It is shown that
due to the combined effect of the rotation of the source and the cosmic
repulsion the equilibrium is spin dependent in contrast to the
spherically symmetric spacetimes.
Authors:
Stuchlík, Zdeněk; Kovář, Jiří;