47 citations · 138 across the 10 of their papers we have counts for
10 papers
Precision tests of analytical tail-term approximations for radiation reaction in Schwarzschild spacetime
Bakhtinur Juraev, Arman Tursunov, Zdeněk Stuchlík +2
We investigate the consistency and precision of approximate analytical expressions for the electromagnetic self-force acting on a charged particle in Schwarzschild spacetime endowe…
Electromagnetic radiation-reaction near black holes: orbital widening and the role of the tail
Bakhtinur Juraev, Arman Tursunov, Zdeněk Stuchlík +2
We investigate the orbital evolution of a classical charged particle around a Schwarzschild black hole immersed in an external, uniform magnetic field, taking into full account bot…
Interaction of Black Hole Magnetospheres with Inclined Ambient Fields
Madina Zhakipova, Arman Tursunov, Saken Toktarbay +1
Magnetic fields play a central role in black hole astrophysics, powering relativistic jets and other energetic phenomena. While near-horizon magnetic field is usually assumed to or…
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…
Circular equatorial orbits of extended bodies with spin-induced quadrupole around a Kerr black hole: Comparing spin-supplementary conditions
Misbah Shahzadi, Georgios Lukes-Gerakopoulos, Martin Kološ
The worldline of an extended body in curved spacetime can be described by the Mathisson-Papapetrou-Dixon equations when its centroid, i.e., its center of mass, is fixed by a spin s…
Simulations of black hole accretion torus in various magnetic field configurations
Martin Kološ, Agnieszka Janiuk
Using axisymetric general relativistic magnetohydrodynamics simulations we study evolution of accretion torus around black hole endowed with different initial magnetic field config…
Axially symmetric and static solutions of Einstein equations with self-gravitating scalar field
Bobur Turimov, Bobomurat Ahmedov, Martin Kološ +1
The exact axisymmetric and static solution of the Einstein equations coupled to axisymmetric and static gravitating scalar (or phantom) field is presented. The spacetimes modified…
Orbital widening due to radiation reaction around a magnetized black hole
Arman Tursunov, Martin Kološ, Zdeněk Stuchlík
Radiation reaction acting on a charged particle moving at a stable circular orbit of a magnetized black hole can lead to the shift of the orbital radius outwards from the black hol…
Mass of intermediate black hole in the source M82 X-1 restricted by models of twin high-frequency quasi-periodic oscillations
Zdeněk Stuchlík, Martin Kološ
We apply the relativistic precession (RP) model with its variants and the resonance epicyclic model with its variants, based on the frequencies of the geodesic epicyclic motion in…
Current-carrying string loops in black-hole spacetimes with a repulsive cosmological constant
Martin Kološ, Zdeněk Stuchlík
Current-carrying string loop dynamics in Schwarzschild-de Sitter spacetimes characterized by the cosmological parameter λ=1/3ΛM^2 is investigated. With attention concentrated to th…