93 citations · 308 across the 9 of their papers we have counts for
9 papers
Bridging Dimensions: General Embedding Algorithm and Field-Theory Reconstruction in 5D Braneworld Models
Theodoros Nakas, Thomas D. Pappas, Zdeněk Stuchlík
We develop a general algorithm that enables the consistent embedding of any four-dimensional static and spherically symmetric geometry into any five-dimensional single-brane branew…
New interior model of neutron stars
Camilo Posada, Jan Hladík, Zdeněk Stuchlík
The Tolman VII solution is considered by some as one of the few analytical solutions to Einstein's equations, which describes approximately well the interior of neutron stars (NSs)…
Light curves of the hot spots on circular orbits around generic regular black holes related to non-linear electrodynamics with Maxwellian weak-field Limit
Dmitriy Ovchinnikov, Jan Schee, Zdenek Stuchlík +1
The combined effect of a strong gravitational field and electromagnetic field in the vicinity of a generic regular black hole related to non-linear electrodynamics with Maxwellian…
General parametrization of higher-dimensional black holes and its application to Einstein-Lovelock theory
Roman A. Konoplya, Thomas D. Pappas, Zdenek Stuchlík
Here we have developed the general parametrization for spherically symmetric and asymptotically flat black-hole spacetimes in an arbitrary metric theory of gravity. The parametriza…
Dynamical instability of polytropic spheres in spacetimes with a cosmological constant
Camilo Posada, Jan Hladík, Zdenek Stuchlík
The dynamical instability of relativistic polytropic spheres, embedded in a spacetime with a repulsive cosmological constant, is studied in the framework of general relativity. We…
Stable Schwarzschild stars as black-hole mimickers
R. A. Konoplya, C. Posada, Z. Stuchlík +1
The Schwarzschild star is an ultracompact object beyond the Buchdahl limit, which has Schwarzschild geometry outside its surface and positive pressure in the external layer which v…
Echoes of compact objects: new physics near the surface and matter at a distance
R. A. Konoplya, Z. Stuchlík, A. Zhidenko
It is well known that a hypothetical compact object that looks like an Einsteinian (Schwarzschild or Kerr) black hole everywhere except a small region near its surface should have…
Massive nonminimally coupled scalar field in Reissner-Nordström spacetime: Long-lived quasinormal modes and instability
R. A. Konoplya, Z. Stuchlík, A. Zhidenko
Here we show that the phenomenon of arbitrarily long-lived quasinormal modes (called quasiresonances) of a massive scalar field in the vicinity of a black hole is not an artifact o…
Axisymmetric black holes allowing for separation of variables in the Klein-Gordon and Hamilton-Jacobi equation
R. A. Konoplya, Z. Stuchlík, A. Zhidenko
We determine the class of axisymmetric and asymptotically flat black-hole spacetimes for which the test Klein-Gordon and Hamilton-Jacobi equations allow for the separation of varia…