10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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438 papers · 1 filter
Reconstruction of the Weyl-Lewis-Papapetrou metric for stationary and axially symmetric gravitational perturbations of a Kerr black hole
David Kofroň, Petr Kotlařík
The study of black hole perturbations typically follows two main approaches: the direct perturbation of the metric, or the perturbation within the Newman-Penrose (NP) or Geroch-Hel…
General relativistic three-body problem
Eliška Klimešová, Martin Žofka
We examine analytically the restricted 3-body problem in general relativity for a set of extremally charged black holes. We apply the method of Ferrell and Eardley, which consists…
Geodesic structure of the cosmological Levi-Civita spacetimes
Adam Tyc, Martin Zofka
We investigate the implications of the behavior of geodesics in static, cylindrically symmetric spacetimes with a non-zero cosmological constant. We consider the symmetries of thes…
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…
Generating anisotropic models for relativistic stellar objects
Paulo Luz, Sante Carloni
We introduce a new type of generating theorems in General Relativity for anisotropic, static, spherically symmetric solutions of the Einstein field equations. The results are used…
On type II(D) Einstein spacetimes in six dimensions
David Kokoška, Marcello Ortaggio
After a concise overview of Einstein spacetimes of type II (or more special) in four and five dimensions, we summarize recent results in the six-dimensional case. We assume the opt…
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…
Exact Bachian singularity in quadratic gravity
Simon Knoska, David Kofron, Robert Svarc
For specifically coupled values of the quadratic gravity parameters, we present a fully explicit static spherically symmetric solution. It contains the central singularity surround…
Light deflection in axially symmetric stationary spacetimes filled with a moving medium
Christian Pfeifer, Barbora Bezděková, Oleg Yu. Tsupko
The deflection of light rays near gravitating objects can be influenced not only by gravity itself but also by the surrounding medium. Analytical studies of such effects are possib…
Kerr isolated horizon revisited: Caustic-free congruence and adapted tetrad
Aleš Flandera, David Kofroň, Tomáš Ledvinka
We revisit the near-horizon description of the Kerr space-time in the isolated horizon formalism using a non-twisting null geodesic congruence and eliminate the coordinate and geod…
On vacuum and charged asymptotically (A)dS black holes in quadratic gravity
George Turner, Vojtěch Pravda, Alena Pravdová
In this paper, we study asymptotic properties of static spherically symmetric black holes in quadratic gravity with a cosmological constant . We find that for sufficiently large…
Extreme mass ratio inspirals into black holes surrounded by matter: Resonance crossings
Michal Stratený, Georgios Lukes-Gerakopoulos, Ondřej Zelenka
The forthcoming space-based gravitational-wave observatory Laser Interferometer Space Antenna (LISA) should enable the detection of Extreme Mass Ratio Inspirals (EMRIs), in which a…
Double Wick rotations between symmetries of Taub-NUT, near-horizon extreme Kerr, and swirling spacetimes
Aimeric Colléaux, Ivan Kolář, Tomáš Málek
We explicitly show that certain 4-dimensional infinitesimal group actions with 3-dimensional orbits are related by double Wick rotations. In particular, starting with the symmetrie…
Charged particle dynamics in magnetosphere generated by current loop around Schwarzschild black hole
Martin Kološ, David Kofroň
We present a theoretical study of the magnetic field generated by a toroidal current loop situated in the equatorial plane of a non-rotating Schwarzschild black hole, based on the…
Neglected solutions in quadratic gravity
Breno L. Giacchini, Ivan Kolář
We report on several previously overlooked families of static spherically symmetric solutions in quadratic gravity. Our main result concerns the existence of solutions whose leadin…
New class of rotating charged black holes with nonaligned electromagnetic field
Hryhorii Ovcharenko, Jiří Podolský
We present a large family of twisting and expanding solutions to the Einstein-Maxwell equations of algebraic type D, for which the two double principal null directions (PNDs) of th…
Linear perturbations of Kerr black hole in quadratic gravity
Simon Knoska, David Kofron, Robert Svarc
Employing the Newman-Penrose formalism and following the classic Teukolsky-like approach, we linearise the field equations of quadratic gravity on the Kerr background and combine t…
Locally Rotationally Symmetric Spacetimes in Einstein-Cartan Theory and Their Classification
Ujjwal Agarwal, Sante Carloni
We present the complete set of covariant equations that govern the locally rotationally symmetric torsion spacetimes sourced by Weyssenhoff fluid in Einstein-Cartan-Sciama-Kibble g…
Teleparallel gravity from the principal bundle viewpoint
Sebastian Brezina, Eugenia Boffo, Martin Krššák
We examine whether the Teleparallel Equivalent of General Relativity (TEGR) can be formulated as a gauge theory in the language of connections on principal bundles. We argue in fav…
Conical singularity in spacetimes with NUT is observer-dependent
Ivan Kolář, Pavel Krtouš, Maciej Ossowski
We discuss the issue of defining and measuring conical deficits (conicity) in spacetimes with the torsion singularity such as the Misner string in Taub--NUT spacetime. We propose a…
Toward relativistic inspirals into black holes surrounded by matter
Lukáš Polcar, Vojtěch Witzany
Extreme mass ratio inspirals, compact objects spiraling into massive black holes, represent key sources for future space-based gravitational-wave detectors such as LISA. The inspir…
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…
Spherical inspirals of spinning bodies into Kerr black holes
Viktor Skoupý, Gabriel Andres Piovano, Vojtěch Witzany
Extreme mass-ratio inspirals (EMRIs), consisting of a stellar-mass compact object spiraling into a massive black hole, are key sources for future space-based gravitational wave obs…
Thermodynamics of Regular Black Holes in Anti-de Sitter Space
Robie A. Hennigar, David Kubizňák, Sebastian Murk +1
We construct regular black holes with anti-de Sitter asymptotics in theories incorporating infinite towers of higher-order curvature corrections in any dimension . We find…