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;