140 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- National University of UzbekistanUZ66 papers
- Ulugh Beg Astronomical InstituteUZ58 papers
- Tashkent State Technical University named after Islam KarimovUZ33 papers
- Zhejiang University of TechnologyCN26 papers
- Fudan UniversityCN21 papers
- Shanghai Astronomical ObservatoryCN20 papers
- Central Asian UniversityUZ18 papers
- Institute of Nuclear PhysicsUZ18 papers
- Urgench State UniversityUZ17 papers
- National University of Sciences and TechnologyPK15 papers
- New Uzbekistan UniversityUZ15 papers
- Inha University in TashkentUZ12 papers
101 papers
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…
Eikonal Ringing, Shadows, Lensing, Grey-Body Factors, and Binding Energy of Asymptotically Flat Regular Black Holes in Phantom Dirac-Born-Infeld Gravity
Mardon Abdullaev, Gumisbek Allambergenov, Diyorbek Rashidov +2
We develop a geodesic-optics description of eikonal quasinormal ringing, blackhole shadows, strong lensing, grey-body factors (GBFs), and the binding energy of massive particles fo…
Phase transition for a black hole with matter fields and the relation with the Lyapunov exponent
Pakhlavon Yovkochev, Bobomurat J. Ahmedov, Bum-Hoon Lee +2
We construct static black hole solutions coexisting with anisotropic matter in asymptotically (anti-)de Sitter spacetime and investigate how the matter field modifies their thermod…
Spinning Particles around Einstein-Geometric Proca AdS Compact Objects
Gulzoda Rakhimova, Beyhan Puliçe, Elham Ghorani +2
We investigate the dynamics of spinning test particles in the vicinity of Einstein--geometric Proca (EGP) Anti-de Sitter (AdS) compact objects, which arise from metric-Palatini gra…
Ringing Regularity: Gravitational Perturbations and Quasinormal Modes of Einasto-Supported Black Holes
Bekir Can Lütfüoğlu, Javlon Rayimbaev, Sardor Murodov +2
We investigate axial gravitational perturbations and quasinormal modes of regular black holes supported by an Einasto distribution of matter. Halo matter not only removes the centr…
Two types of quasinormal modes of Casadio-Fabbri-Mazzacurati brane-world black holes
Bekir Can Lütfüoğlu, Sardor Murodov, Mardon Abdullaev +3
Using the convergent Leaver method, we investigate the quasinormal modes of a massive scalar field propagating in the background of the Casadio--Fabbri--Mazzacurati (CFM) brane-wor…
Solar-cycle variations in meridional flows and rotational shear within the Sun's near-surface shear layer
Anisha Sen, S. P. Rajaguru, Abhinav Govindan Iyer +3
Using solar-cycle long helioseismic measurements of meridional and zonal flows in the near-surface shear layer (NSSL) of the Sun, we study their spatio-temporal variations and conn…
Gravitational Spectra and Wave Propagation in Regular Black Holes Supported by a Dehnen Halo
Bekir Can Lütfüoğlu, Abubakir Shermatov, Javlon Rayimbaev +2
We investigate gravitational perturbations, quasinormal modes, grey-body factors, and absorption cross-sections of the recently proposed regular and asymptotically flat black hole…
Nonlinear evolution of anisotropic matter configurations under higher-order curvature corrections
A. Zahra, S. A. Mardan, Muhammad Bilal Riaz +4
This study examines the dynamical evolution of self-gravitating systems in the presence of exotic matter within the framework of gravity. Specifically, we have adopted the S…
Gravitational wave radiation from periodic orbits and quasi-periodic oscillations in Einstein non-linear Maxwell-Yukawa black hole
Tehreem Zahra, Oreeda Shabbir, Bushra Majeed +3
In this article, we investigate the orbital dynamics and quasi-periodic oscillations (QPOs) surrounding a static, spherically symmetric geometry of an Einstein-nonlinear Maxwell-Yu…
Proper-Time Approach in Asymptotic Safety via Black Hole Quasinormal Modes and Grey-body Factors
Bekir Can Lütfüoğlu, Erdinç Ulaş Saka, Abubakir Shermatov +3
We study the quasinormal mode spectrum and grey-body factors of black holes in an effectively quantum-corrected spacetime, focusing on the influence of near-horizon modifications o…
Thermodynamics of Einstein-Geometric Proca AdS compact objects
Asalkhon Alimova, Elham Ghorani, Beyhan Puliçe +2
In this study we explore metric-Palatini gravity extended by the antisymmetric component of the affine curvature. This gravitational theory results in general relativity plus a geo…
Gravitational quasinormal modes of Dymnikova black holes
Bekir Can Lütfüoğlu, Erdinç Ulaş Saka, Abubakir Shermatov +3
We investigate gravitational quasinormal modes of the Dymnikova black hole, a regular spacetime in which the central singularity is replaced by a de Sitter core. This geometry, ori…
New analytical model of rotating black hole with dark matter halo: constraints from EHT observations and accretion disk
Uktamjon Uktamov, Sanjar Shaymatov, Bobomurat Ahmedov +1
In this paper, we start from a static black hole (BH) immersed in a Deanne-type dark matter (DM) halo and employ the Newman-Janis algorithm (NJA) to generate the rotating black hol…
Lensing Stability and Scattering Phenomena in Anisotropic Black Hole Spacetimes in Plasma
Jonibek Khasanov, Mirzabek Alloqulov, Pankaj Sheoran +2
We investigate the physical and observational features of static, spherically symmetric black hole spacetimes surrounded by anisotropic fluid and embedded in a plasma environment.…
Exploring the Effects of Generalized Entropy onto Bardeen Black Hole Surrounded by Cloud of Strings
Hamza Tariq, Usman Zafar, Shahid Chaudhary +3
This work explores the thermodynamic characteristics and geothermodynamics of a Bardeen black hole (BH) that interacts with a string cloud and is minimally connected to nonlinear e…
Shadows and Optical Appearances of Black Holes in Gravity
Khadije Jafarzade, Sanjar Shaymatov, Mubasher Jamil
In this paper, we consider a charged AdS/dS black hole (BH) in gravity and study its optical features, including the shadow's geometrical shape and the energy emission rate…
Bulk viscous matter in gravity: A path to cosmic acceleration
Kairat Myrzakulov, O. Donmez, M. Koussour +3
In this paper, we investigate the effects of varying bulk viscosity coefficients on cosmic evolution within the framework of teleparallel gravity. We foc…
Observational constraints on a generalized equation of state model
M. Koussour, S. Bekov, A. Syzdykova +3
We investigate the cosmological implications of a generalized total equation of state (EoS) model by constraining its parameters using observational datasets to effectively charact…
Quasinormal modes and shadow of Schwarzschild black holes embedded in a Dehnen type dark matter halo exhibiting string cloud
Ahmad Al-Badawi, Sanjar Shaymatov
In this paper, we consider a static spherically symmetric black hole (BH) embedded in a Dehnen-(1,4,0) type dark matter (DM) halo in the presence of a cloud string. We examine and…
Particle dynamics and the accretion disk around a Self-dual Black Hole immersed in a magnetic field in Loop Quantum Gravity
Uktamjon Uktamov, Mirzabek Alloqulov, Sanjar Shaymatov +2
In this paper, we study the motion of magnetic dipoles and electrically charged particles in the vicinity of a self-dual black hole in Loop Quantum Gravity (LQG) immersed in an ext…
Energy Extraction from Loop Quantum Black Holes: The Role of Magnetic Penrose Process and Quantum Gravity Effects with Astrophysical Insights
Tursunali Xamidov, Pankaj Sheoran, Sanjar Shaymatov +1
In this study, we explore the influence of quantum gravitational corrections, derived from Loop Quantum Gravity (LQG), on the efficiency of the magnetic Penrose process (MPP) in bl…
Gauge invariant perturbations in teleparallel Horndeski gravity
Bobomurat Ahmedov, Maria Caruana, Jackson Levi Said +4
We present in the form of a catalogue of the cosmological perturbations within the Bahamonde- Dialektopoulos-Levi Said (BDLS) theory, which serves as the teleparallel counterpart o…
Particle Dynamics and Quasi-Periodic Oscillations in the GUP-Modified Schwarzschild Spacetime: Constraint Using Micro-Quasars Data
Husanboy Hoshimov, Odil Yunusov, Farruh Atamurotov +2
In this work, we have worked out dynamical aspects for the particles moving around the GUP-corrected-Schwarzschild (S-GUP) black hole. We have calculated the innermost stable circu…