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- Joint Institute for Nuclear ResearchRU292 papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR251 papers
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- Tata Institute of Fundamental ResearchIN211 papers
7 papers · 2 filters
Conformal infinity in Robinson-Trautman spacetimes with cosmological constant
Otakar Svitek
In past, the future asymptotic behavior (with respect to initial data on null hypersurface) of Robinson-Trautman spacetime was examined and its past horizon characterized. Therefor…
Free motion around black holes with discs or rings: between integrability and chaos - II
O. Semerák, P. Suková
We continue the study of time-like geodesic dynamics in exact static, axially and reflection symmetric space-times describing the fields of a Schwarzschild black hole surrounded by…
Free motion around black holes with discs or rings: between integrability and chaos - I
O. Semerák, P. Suková
Geodesic dynamics is regular in the fields of isolated stationary black holes. However, due to the presence of unstable periodic orbits, it easily becomes chaotic under various per…
Variations on spacetimes with boost-rotation symmetry
Jiří Bičák, David Kofroň
Some new results on the boost-rotation symmetric spacetimes representing pairs of rotating charged objects accelerated in opposite directions are summarized. A particular attention…
Source integrals for multipole moments in static and axially symmetric spacetimes
Norman Gürlebeck
In this article, we derive source integrals for multipole moments in axially symmetric and static spacetimes. The multipole moments can be read off the asymptotics of the metric cl…
Effects of rotating gravitational waves
J. Bicak, J. Katz, T. Ledvinka +1
We study gravitational waves to first and second order in amplitude in vacuum asymptotically flat spacetimes. The Einstein equations are solved to first order and these solutions a…