93 citations · 408 across the 20 of their papers we have counts for
22 papers
Effect of induced frame dragging on energy extraction from axially symmetric magnetized Reissner-Nordström BH and observational benchmarks
Ikhtiyor Eshtursunov, Chen Zhou, Sanjar Shaymatov +2
In this paper, we probe the effect of induced frame dragging on the energy extraction process via magnetic reconnection in axially symmetric magnetized Reissner-Nordström black hol…
Operator-Level Quantum-Classical Correspondence in Relativistic Quantum Theory and Curved Spacetime
Pankaj Sheoran, Gopal Kashyap, Sanjay Siwach
In a recent work \cite{Shaikh:2026nsi}, it was shown that for a non-relativistic particle, the operator equations of motion can be cast in the same differential form as Newton's eq…
Constraining ModMax Black Holes with EHT and GRAVITY Observations: Optical Signatures and Accretion Disk Properties
Tursunali Xamidov, Mirjavoxir Mirkhaydarov, Sanjar Shaymatov +2
In this work, we study photon propagation and the radiative properties of a thin accretion disk around a ModMax black hole and examine the effects of the charge (i.e. $Q^2 = Q^…
Comisso-Asenjo Mechanism in Rotating Gauged Supergravity Black Holes: Extended Comparison With Kerr Black Hole
Abhinav Jaguri, Hemwati Nandan, Pankaj Sheoran +1
In this paper, we investigate energy extraction via the Comisso-Asenjo (CA) magnetic reconnection process near a coupled gauged supergravity Black Hole (BH…
Magnetic Modification of Black Hole Photospheres with Image Contraction, Efficiency Shifts and Redshift Boosts in Schwarzschild-Bertotti-Robinson Spacetime
Javokhir Sharipov, Pankaj Sheoran, Sanjar Shaymatov
We investigate the optical and radiative signatures of an accretion disk around a Schwarzschild black hole (BH) immersed in a uniform magnetic field. The spacetime geometry is desc…
Optical Signatures of a Schwarzschild Black Hole in a Dehnen-Type Dark Matter Halo
Javokhir Sharipov, Jonibek Khasanov, Pankaj Sheoran +2
In this paper, the optical effects that occur near a Schwarzschild-like black hole (BH) with a Dehnen-type dark matter (DM) halo are explored. We first derive the photon…
Non-Monotonic Enhancement of the Magnetic Penrose Process in Kerr-Bertotti-Robinson Spacetime and its Implication for Electron Acceleration
Mirjavoxir Mirkhaydarov, Tursunali Xamidov, Pankaj Sheoran +2
We studied the magnetic Penrose process (MPP) in the Kerr-Bertotti-Robinson (KBR) spacetime, an exact rotating electrovacuum solution describing a black hole (BH) immersed in an in…
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.…
Nonlinear electrodynamic black holes and their role in testing modified theories of gravity
Javokhir Sharipov, Mirzabek Alloqulov, Pankaj Sheoran +1
The nature of black holes (BHs) and their potential deviations from classical General Relativity (GR) remain central questions in modern astrophysics. Nonlinear electrodynamics (NE…
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…
Astrophysical insights into magnetic Penrose process around parameterized Konoplya-Rezzolla-Zhidenko black hole
Tursunali Xamidov, Sanjar Shaymatov, Pankaj Sheoran +1
In this study, we investigate the parameterized Konoplya-Rezzolla-Zhidenko (KRZ) black hole (BH) spacetime in the presence of an external asymptotically uniform magnetic field. We…
Chaos motion and Periastron precession of spinning test particles moving in the vicinage of a Schwarzschild black hole surrounded by a quintessence matter field
Shobhit Giri, Pankaj Sheoran, Hemwati Nandan +1
In the present work, our main objective is to investigate the orbits of spinning test particles around a Schwarzschild black hole under the influence of a quintessence matter field…
Efficiency of Penrose process in spacetime of axially symmetric magnetized Reissner-Nordström black hole
Sanjar Shaymatov, Pankaj Sheoran, Ricardo Becerril +2
In this paper, we investigate the Penrose process in the purlieus of the axially symmetric magnetized Reissner-Nordström black hole for both neutral and charged particles. We start…
Motion of charged and spinning particle influenced by dark matter field surrounding a charged dyonic black hole
Sanjar Shaymatov, Pankaj Sheoran, Sanjay Siwach
We investigate the motion of massive charged and spinning test particles around a charged dyonic black hole spacetime surrounded by perfect fluid scalar dark matter field. We obtai…
Charged black hole in Einstein-Gauss-Bonnet gravity: Particle motion, plasma effect on weak gravitational lensing and centre-of-mass energy
Farruh Atamurotov, Sanjar Shaymatov, Pankaj Sheoran +1
We study the motion of charged and spinning particles and photons in the charged Einstein-Gauss-Bonnet (EGB) black hole vicinity. We determine the radius of the innermost stab…
Particle collisions near static spherically symmetric black holes
Eva Hackmann, Hemwati Nandan, Pankaj Sheoran
It has been shown by Bañados, Silk and West (BSW) that the center of mass energy (E_cm) of test particles starting from rest at infinity and colliding near the horizon of a Schwarz…
Mass parameter and the bounds on redshifts and blueshifts of photons emitted from geodesic particle orbiting in the vicinity of regular black holes
Ricardo Becerril, Susana Valdez -Alvarado, Ulises Nucamendi +2
We obtain the mass parameter for a class of static and spherically symmetric regular black holes (BHs) (namely Bardeen, Hayward and Ayón-Beato-García BHs) which are solutions of Ei…
Schwarzschild black hole surrounded by quintessential matter field as an accelerator for spinning particles
Pankaj Sheoran, Hemwati Nandan, Eva Hackmann +2
We study the collision of two massive particles with non-zero intrinsic spin moving in the equatorial plane in the background of a Schwarzschild black hole surrounded by quintessen…
Bounds on spinning particles in their innermost stable circular orbits around rotating braneworld black hole
Ulises Nucamendi, Ricardo Becerril, Pankaj Sheoran
We study the innermost stable circular orbit (ISCO) of a spinning test particle moving in the vicinity of an axially symmetric rotating braneworld black hole (BH). We start with th…
Mass and spin of a Kerr black hole in modified gravity and a test of the Kerr black hole hypothesis
Pankaj Sheoran, Alfredo Herrera-Aguilar, Ulises Nucamendi
In this paper we compute the Arnowitt-Deser-Misner (ADM) mass, the angular momentum and the charge of the Kerr black hole solution in the scalar-tensor-vector gravity theory [known…
Rotating Ayón-Beato-García black hole as a particle accelerator
Sushant G. Ghosh, Pankaj Sheoran, Muhammed Amir
We study the collision of two particles with equal masses moving in the equatorial plane near horizon of the rotating regular Ayón-Beato-García (ABG) black hole (BH) and calculate…
Higher dimensional non-Kerr black hole and energy extraction
Sushant G. Ghosh, Pankaj Sheoran
We investigate the properties of the horizons and ergosphere in a rotating higher dimensional (HD) deformed Kerr-like black hole. We also explicitly bring out the effect of deforma…