activity
20202026
most citedAccretion disk luminosity for black holes surrounded by dark matter

71 citations · 71 across the 8 of their papers we have counts for

collaborators

11 papers

gr-qc2026

Exact radial stability threshold for a Minkowski-Schwarzschild thin shell

Anuar Idrissov

We study the stability of a thin shell of ordinary matter that separates a flat interior from a Schwarzschild exterior, which is the simplest model of a subluminal warp drive. The…

gr-qc2026

Naked Singularities and Black Hole Thermodynamics from Shadows and Photon Rings in the Quantum Oppenheimer-Snyder Model

Jose Miguel Ladino, Anuar Idrissov, Carlos E. Romero-Figueroa +1

We investigate the optical and thermodynamic properties of quantum Oppenheimer-Snyder (qOS) spacetimes in both the black hole and naked singularity regimes. By analyzing test-parti…

gr-qc2026

Static Spherically Symmetric Solutions in Nonconservative Unimodular Gravity

Anuar Idrissov, Hernando Quevedo

We study static and spherically symmetric black holes in nonconservative unimodular gravity, where the traceless field equations determine the source of a given geometry only up to…

gr-qc2026

Observational properties of magnetized quantum Oppenheimer-Snyder black holes

Anuar Idrissov, Hernando Quevedo

We consider a thin accretion disk around the quantum Oppenheimer-Snyder black hole immersed in an asymptotically uniform magnetic field, together with the gravitational capture of…

gr-qc2026

Tidal forces in the quantum Oppenheimer--Snyder black hole

Anuar Idrissov, Hernando Quevedo

We investigate the tidal forces experienced by massive particles in radial free fall in the quantum Oppenheimer--Snyder black hole, a loop quantum gravity correction to the Schwarz…

gr-qc2026

Newtonian Shirokov Effect: Epicyclic Frequency Splitting from Mass Multipoles

Anuar Idrissov, Kuantay Boshkayev, Abylaikhan Tlemissov +1

We analyze small oscillations of nearly circular orbits in an axisymmetric Newtonian potential expanded in mass multipoles, as the classical counterpart of the relativistic Shiroko…

gr-qc2026

Shirokov and Shapiro Effects in the Hartle-Thorne Spacetime

Anuar Idrissov, Kuantay Boshkayev, Serzhan Momynov +4

We investigate the influence of rotation and quadrupole deformations of astrophysical compact objects on the Shirokov and Shapiro effects within the Hartle-Thorne spacetime, which…

gr-qc2025

Constraining quadrupole deformations with relativistic effects

Daniya Utepova, Kuantay Boshkayev, Serzhan Momynov +4

We investigate two general relativistic effects - namely, the Shirokov and Shapiro effects - within the framework of the Zipoy-Voorhees spacetime (-metric), which generalizes th…

gr-qc2025

Geodesic deviation in the -metric

Anuar Idrissov, Kuantay Boshkayev, Konstantinos F. Dialektopoulos +2

We consider the tidal forces between test particles falling along geodesics in the exterior spacetime generated by a static and axially symmetric compact matter source with non-van…

astro-ph.HE2023

Quasi-periodic oscillations for spherically symmetric regular black holes

Kuantay Boshkayev, Anuar Idrissov, Orlando Luongo +1

We consider the recent data sets of quasi-periodic oscillations from eight different low mass X-ray binaries. We here interpret their physical features in the context of given regu…

astro-ph.HE2020★ 71 cited

Accretion disk luminosity for black holes surrounded by dark matter

Kuantay Boshkayev, Anuar Idrissov, Orlando Luongo +1

We consider the observational properties of a static black hole space-time immersed in a dark matter envelope. We thus investigate how the modifications to geometry, induced by the…