On the spinning C-metric

Physical interpretation of some stationary and non-stationary regions of the spinning C-metric is presented. They represent different spacetime regions of a uniformly accelerated Kerr black hole. Stability of geodesics corresponding to equilibrium points in a general stationary spacetime with an additional symmetry is also studied and results are then applied to the spinning C-metric.Comment: 12 pages, 7 figures, RevTeX

Axisymmetric electrovacuum spacetimes with an additional Killing vector and radiation

Main results concerning allowable additional symmetries of axially symmetric electrovacuum spacetimes are summarized. These are translational Killing vectors and the boost Killing vector. However, this is only the boost symmetry that does not exclude radiation and permit a spacetime to be asymptotically flat with global null infinity.Comment: 2 pages, contribution to the 9th Marcel Grossmann meeting (MG9), Rome, July 200