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9 papers · 2 filters
Disc sources for Conformastationary metrics
J. Katz, J. Bicak, D. Lynden-Bell
Conformastationary metrics have been derived by Perjes and by Israel and Wilson as source-free solutions of the Einstein-Maxwell equations. By analogy with the conformastatic metri…
Nonexpanding impulsive gravitational waves with an arbitrary cosmological constant
J. Podolsky, J. B. Griffiths
Exact solutions for nonexpanding impulsive waves in a background with nonzero cosmological constant are constructed using a `cut and paste' method. These solutions are presented us…
Gravitational waves in vacuum spacetimes with cosmological constant. II. Deviation of geodesics and interpretation of non-twisting type N solutions
J. Bicak, J. Podolsky
In a suitably chosen essentially unique frame tied to a given observer in a general spacetime, the equation of geodesic deviation can be decomposed into a sum of terms describing s…
Gravitational waves in vacuum spacetimes with cosmological constant. I. Classification and geometrical properties of non-twisting type N solutions
J. Bicak, J. Podolsky
All non-twisting Petrov-type N solutions of vacuum Einstein field equations with cosmological constant Lambda are summarized. They are shown to belong either to the non-expanding K…
Expanding impulsive gravitational waves
J. Podolsky, J. B. Griffiths
We explicitly demonstrate that the known solutions for expanding impulsive spherical gravitational waves that have been obtained by a "cut and paste" method may be considered to be…
Self-gravitating fluid shells and their non-spherical oscillations in Newtonian theory
J. Bicak, B. G. Schmidt
We summarize the general formalism describing surface flows in three-dimensional space in a form which is suitable for various astrophysical applications. We then apply the formali…
Axisymmetric electrovacuum spacetimes with a translational Killing vector at null infinity
J. Bicak, A. Pravdova
By using the Bondi-Sachs-van der Burg formalism we analyze the asymptotic properties at null infinity of axisymmetric electrovacuum spacetimes with a translational Killing vector a…
Spinning C-metric: radiative spacetime with accelerating, rotating black holes
J. Bicak, V. Pravda
The spinning C-metric was discovered by Plebanski and Demianski as a generalization of the standard C-metric which is known to represent uniformly accelerated non-rotating black ho…
Global structure of Robinson-Trautman radiative space-times with cosmological constant
J. Bicak, J. Podolsky
Robinson-Trautman radiative space-times of Petrov type II with a non-vanishing cosmological constant Lambda and mass parameter m>0 are studied using analytical methods. They are sh…