8 papers
Hidden symmetries and separability structures of Ovcharenko-Podolský and conformal-to-Carter spacetimes
Finnian Gray, David Kubiznak, Hryhorii Ovcharenko +1
Recently, a remarkable new class of spacetimes describing black holes immersed in a non-aligned electromagnetic field has been found. While still of type D, this class goes beyond…
Algebraic classification of 2+1 geometries
Matus Papajcik, Jiri Podolsky
We present a new effective method of algebraic classification of 2+1 geometries. Our approach simply classifies spacetimes using five real scalars, defined as specific projections…
A novel class of rotating black holes with non-aligned electromagnetic field
Hryhorii Ovcharenko, Jiri Podolsky
We present a new class of expanding and twisting solutions to the Einstein-Maxwell equations of algebraic type D, where the null eigendirections of the Faraday tensor are not align…
Kerr black hole in a uniform Bertotti-Robinson magnetic field: An exact solution
Jiri Podolsky, Hryhorii Ovcharenko
A new class of exact spacetimes in Einstein's gravity, which are Kerr black holes immersed in an external magnetic (or electric) field that is asymptotically uniform and oriented a…
Interpreting gravitational fields of Topologically Massive Gravity using geodesic deviation
Matus Papajcik, Jiri Podolsky
We study relative motion of nearby test particles in Topologically Massive Gravity (TMG) in three spacetime dimensions, using the equation of geodesic deviation. We show that, in a…
Revisiting black holes of algebraic type D with a cosmological constant
Hryhorii Ovcharenko, Jiri Podolsky, Marco Astorino
As an extension of our previous work [1] (arXiv:2409.02308), we study a complete family of type D black holes with Kerr-like rotation, NUT twist, acceleration, electric and magneti…