7 papers
Quasi-periodic oscillations in Letelier black holes within Kalb-Ramond gravity embedded in a uniform external magnetic field
Ahmad Al-Badawi, Shokhzod Jumaniyozov
We investigate the dynamics of charged test particles around a Letelier black hole, i.e. a black hole surrounded by a cloud of strings (CoS), in Kalb-Ramond (KR) gravity, immersed…
Probing black holes surrounded by Dust field in Quantum Fluctuation Modified Gravity with twin-peak QPOs
Kamola Shermatova, Qodir Badalov, Abubakir Shermatov +5
We study a static, spherically symmetric black hole solution surrounded by a dust field within quantum fluctuation modified gravity, in which the quantum-fluctuation parameter …
Periodic orbits and gravitational wave signatures from magnetic dipoles around magnetized Kerr black holes
Shokhzod Jumaniyozov, Javlon Rayimbaev, Chengxun Yuan +3
We study periodic orbits and the associated gravitational radiation of a magnetized (uncharged) test particle carrying a magnetic dipole moment with coupling constant beta, moving…
Gravitational perturbations of a regular T-duality inspired black hole: Quasinormal modes, excitation factors, and time-domain evolution
Bekir Can Lütfüoğlu, Mardon Abdullaev, Javlon Rayimbaev +2
We study axial gravitational perturbations of the neutral regular black hole generated by a non-local, T-duality-inspired zero-point length and the associated gravitational self-en…
Tidal Deformability of Neutron Stars in Bumblebee Gravity: Probing Lorentz Symmetry Breaking with Gravitational Waves
Ayan Banerjee, sherzod Sayfiyev, Muhtarama Radjapbaeva +3
We investigate the tidal properties of static neutron stars in the Neves--Gardim branch of bumblebee gravity, a vector--tensor theory in which a nonzero vacuum expectation value of…
Magnetically charged spinning particles around a regular black hole: constraints on the monopole charge from quasi-periodic oscillations
Shokhzod Jumaniyozov, Javlon Rayimbaev, Chengxun Yuan +4
We investigate the dynamics of magnetically charged spinning test particles in the spacetime of the Bardeen regular black hole, sourced by nonlinear electrodynamics and featuring a…
Corrected thermodynamics and radiation predictions of modified black bounce compact objects
Shokhzod Jumaniyozov, Javlon Rayimbaev, Yassine Sekhmani +3
We study the thermodynamic properties and radiation characteristics of a regular compact object obtained by applying the Simpson-Visser (SV) regularisation to the Schwarzschild mod…