activity
20202026
most citedShadow of the magnetically and tidally deformed black hole

7 citations · 12 across the 6 of their papers we have counts for

collaborators

6 papers

gr-qc2026

Observational signatures of misaligned double-ring and double-torus configurations around a Schwarzschild black hole

Dmitriy Ovchinnikov, Jan Schee, Zdeněk Stuchlík

We investigate the observational signatures of an idealized double-ring and double-torus system orbiting a Schwarzschild black hole, allowing the two emitting components to have mu…

gr-qc2025★ 5 cited

Primary Proca Hair and the Double-Peak Optics of Black Holes

R. A. Konoplya, D. Ovchinnikov, J. Schee

We study the optical properties of black holes endowed with primary Proca hair, focusing on the distinctive double-peak structure generated in the effective potential by the massiv…

gr-qc2023

Quasinormal ringing of Bardeen spacetime

Dmitriy Ovchinnikov

We review recent calculations of quasinormal modes and asymptotic tails of the Bardeen spacetime interpreted as a quantum corrected Schwarzschild-like black holes. Massless electro…

gr-qc2023

Bardeen spacetime as a quantum corrected Schwarzschild black hole: Quasinormal modes and Hawking radiation

R. A. Konoplya, D. Ovchinnikov, B. Ahmedov

The Bardeen black hole holds historical significance as the first model of a regular black hole. Recently, there have been proposed interpretations of the Bardeen spacetime as quan…

gr-qc2021

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…

gr-qc2020★ 7 cited

Shadow of the magnetically and tidally deformed black hole

R. A. Konoplya, Jan Schee, Dmitriy Ovchinnikov

We consider a simple model of a black hole surrounded by a toroidal structure and experiencing deformation due to magnetic field and the tidal force. For this system we construct t…