317 citations · 688 across the 30 of their papers we have counts for
30 papers
Thermodynamics of Genuine Kerr-Bertotti-Robinson Black Holes
David Kubiznak, Hryhorii Ovcharenko, Jiri Podolsky
We propose a thermodynamic description of the genuine Kerr-Bertotti-Robinson (Kerr-BR) black hole spacetimes. Contrary to previous studies, such solutions no longer have electric c…
Kerr-Newman and genuine Kerr black holes in the Bertotti-Robinson magnetic field
Hryhorii Ovcharenko, Jiri Podolsky
We present a spacetime that describes a rotating and charged black hole immersed in an external magnetic field. This exact solution to the Einstein-Maxwell equations has a surprisi…
New metric useful for studies of gravitational radiation from accelerating black holes of type D with any cosmological constant
Jiri Podolsky
We apply a convenient parametrization of all Plebanski-Demianski black holes of algebraic type D with the Kerr rotation, NUT twist, acceleration, electric and magnetic charges, and…
Uniqueness of stationary axisymmetric type D black holes with non-aligned electromagnetic field
Hryhorii Ovcharenko, Jiri Podolsky
We demonstrate the uniqueness of the spacetimes recently found by us in [H. Ovcharenko and J. Podolsky, Phys. Rev. D 112 (2025) 064076]. First, we prove that the conformal-to-Carte…
Static black holes in an external uniform electromagnetic field: Reissner-Nordstrom accelerating in Bertotti-Robinson
Hryhorii Ovcharenko, Jiri Podolsky
We provide a detailed analysis of the non-twisting subcase of the large class of type D black holes with a non-aligned electromagnetic field, presented recently in [H. Ovcharenko a…
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…
Various metric forms of all type D black holes and their application
Jiri Podolsky
Several recent results concerning the complete class of exact solutions to the Einstein-Maxwell- equations of type D with a double-aligned electromagnetic field are summarized.…
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…
Black holes of type D revisited: relating their various metric forms
Hryhorii Ovcharenko, Jiri Podolsky, Marco Astorino
We investigate a complete family of spacetimes which represent black holes with rotation, NUT twist, acceleration, electric and magnetic charges. These are exact solutions of the E…
Extremal rotating BTZ black holes cannot be dressed in (anti-)self-dual Maxwell field
Hideki Maeda, Jiri Podolsky
Under the (anti-)self-dual condition for orthonormal components of the Faraday tensor, the 3D Einstein-Maxwell system with a negative cosmological constant admits a solution ob…
Algebraic classification of 2+1 geometries: a new approach
Matus Papajcik, Jiri Podolsky
We present a convenient method of algebraic classification of 2+1 spacetimes into the types I, II, D, III, N and O, without using any field equations. It is based on the 2+1 analog…
A novel classification method of 2+1 spacetimes based on the Cotton scalars
Jiri Podolsky, Matus Papajcik
A new effective approach to the algebraic classification of geometries in 2+1 gravity is presented. It uses five real Cotton scalars of distinct boost weights, which are 3D a…
New Horizons for Fundamental Physics with LISA
K. G. Arun, Enis Belgacem, Robert Benkel +138
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitatio…
Penrose junction conditions with : Geometric insights into low-regularity metrics for impulsive gravitational waves
Jiri Podolsky, Roland Steinbauer
Impulsive gravitational waves in Minkowski space were introduced by Roger Penrose at the end of the 1960s, and have been widely studied over the decades. Here we focus on nonexpand…
Extremal isolated horizons with and the related unique type D black holes
David Matejov, Jiri Podolsky
We extend our previous work in which we derived the most general form of an induced metric describing the geometry of an axially symmetric extremal isolated horizon (EIH) in asympt…
All solutions of Einstein-Maxwell equations with a cosmological constant in 2+1 dimensions
Jiri Podolsky, Matus Papajcik
We present a general solution of the coupled Einstein-Maxwell field equations (without the source charges and currents) in three spacetime dimensions. We also admit any value of th…
Uniqueness of extremal isolated horizons and their identification with horizons of all type D black holes
David Matejov, Jiri Podolsky
We systematically investigate axisymmetric extremal isolated horizons (EIHs) defined by vanishing surface gravity, corresponding to zero temperature. In the first part, using the N…
Kundt spacetimes in the Einstein-Gauss-Bonnet theory
Robert Svarc, Jiri Podolsky, Ondrej Hruska
We systematically investigate the complete class of vacuum solutions in the Einstein-Gauss-Bonnet gravity theory which belong to the Kundt family of non-expanding, shear-free and t…
Geodesics in nonexpanding impulsive gravitational waves with , Part I
Clemens Sämann, Roland Steinbauer, Alexander Lecke +1
We investigate the geodesics in the entire class of nonexpanding impulsive gravitational waves propagating in an (anti-)de Sitter universe using the distributional form of the metr…
The global existence, uniqueness and C^1-regularity of geodesics in nonexpanding impulsive gravitational waves
Jiri Podolsky, Clemens Sämann, Roland Steinbauer +1
We study geodesics in the complete family of nonexpanding impulsive gravitational waves propagating in spaces of constant curvature, that is Minkowski, de Sitter and anti-de Sitter…