81 citations · 360 across the 14 of their papers we have counts for
16 papers
A rotating black hole in a Hernquist dark matter halo: horizon geometry, thermodynamics, and quantum emission
A. A. Araújo Filho, Arun Kumar, N. Heidari +3
We investigate the geometrical, thermodynamic, and quantum emission properties of a rotating black hole immersed in a Hernquist dark matter halo. Starting from a static black hole…
Shadows and lensing signatures of a rotating black hole in a Hernquist dark matter halo
A. A. Araújo Filho, Arun Kumar, N. Heidari +3
We investigate the optical properties of a rotating black hole immersed in a Hernquist dark matter halo. The spacetime is generated from a static Hernquist black hole through the n…
Periodic orbits as probes of charged loop quantum gravity black holes through gravitational waves
Abolhassan Mohammadi, Arun Kumar, Hongwei Tan +1
Gravitational waves from extreme-mass-ratio inspirals (EMRI) provide a direct probe of the strong-field geometry of black holes. Motivated by this, we study the motion of test part…
Probing Gravitational Wave Signatures from Periodic Orbits of Regular Black Holes in Asymptotically Safe Gravity
Arun Kumar, Abolhassan Mohammadi, Sushant G. Ghosh
We investigate bound and periodic timelike geodesics and their associated gravitational-wave (GW) signatures in the spacetime of a regular black hole arising in asymptotically safe…
Thermodynamics and phase transitions of charged-AdS black holes in dRGT massive gravity with nonlinear electrodynamics
Mohd Rehan, Arun Kumar, Tuan Q. Do +1
Investigating black holes in modified theories of gravity offers fertile ground for exploring phenomena beyond the scope of general relativity. We investigate a novel class of char…
Probing Loop Quantum Gravity black holes through gravitational lensing
Arun Kumar, Qiang Wu, Tao Zhu +1
We investigate strong gravitational lensing by a charged loop quantum gravity (LQG) black hole obtained through the polymerisation scheme of Borges \textit{et al.} \cite{Borges:202…
Probing Lorentz Symmetry Violation through Lensing Observables of Rotating Black Holes
Arun Kumar, Shafqat Ul Islam, Sushant G. Ghosh
We find a Kerr-like black hole solution-a rotating Bumblebee black hole (RBBH) with a Lorentz-violating parameter and examine the strong lensing by it. The parameter …
Lyapunov Exponent Approach to Phase Structure of Schwarzschild AdS Black Holes Surrounded by a Cloud of Strings
Arun Kumar, Qiang Wu, Tao Zhu +1
We investigate Schwarzschild black holes in anti-de Sitter (AdS) spacetimes surrounded by a cloud of strings (BH-AdS-CoS), incorporating both electric- and magnetic-like components…
The Influence of Uniform Magnetic Fields on Strong Field Gravitational Lensing by Kerr Black Holes
Amnish Vachher, Arun Kumar, Sushant G. Ghosh
We investigate strong gravitational lensing using magnetized Kerr black holes (MKBHs), which are accurate Kerr-Bertotti-Robinson solutions for Kerr black holes in a uniform magneti…
Nonsingular black hole chemistry in Einstein-Gauss-Bonnet gravity
Arun Kumar, Sushant G. Ghosh
The EGB is an outcome of quadratic curvature corrections to the Einstein-Hilbert gravity action in the form of a Gauss-Bonnet (GB) term in dimensions, and EGB gravity is t…
Thermodynamic stability and P-V criticality of nonsingular-AdS black holes endowed with clouds of strings
Ashima Sood, Arun Kumar, J. K. Singh +1
We investigate the extended phase space thermodynamics of nonsingular-AdS black holes minimally coupled to clouds of strings in which we consider the cosmological constant () as…
Nonsingular black hole chemistry
Arun Kumar, Sushant G. Ghosh, Sunil D. Maharaj
We study the nonsingular black hole in Anti de-Sitter background taking the negative cosmological constant as the pressure of the system. We investigate the horizon structure, and…
Nonsingular Black Holes in Einstein--Gauss--Bonnet Gravity
Arun Kumar, Dharmanand Baboolal, Sushant G. Ghosh
Recently, several methods have been proposed to regularize a limit of Einstein-Gauss-Bonnet (EGB), leading to nontrivial gravitational dynamics in . We present an exa…
Hayward black holes in Einstein-Gauss-Bonnet gravity
Arun Kumar, Dharm Veer Singh, Sushant G. Ghosh
The Hayward metric is a spherically symmetric charged regular black holes, a modification of the Reisnner-Nordstrm black holes of Einstein's equations coupled to nonlinea…
Bardeen Black Holes in the Regularized Einstein--Gauss--Bonnet Gravity
Arun Kumar, Rahul Kumar Walia, Sushant G. Ghosh
We obtain exact Bardeen black holes to the regularized Einstein--Gauss--Bonnet (EGB) gravity minimally coupled with the nonlinear electrodynamics (NED). In turn, we analyze th…
-dimensional Bardeen-AdS black holes in Einstein-Gauss-Bonnet theory
Arun Kumar, Dharm Veer Singh, Sushant G. Ghosh
We present a -dimensional Bardeen like Anti-de Sitter (AdS) black hole solution in Einstein-Gauss-Bonnet (EGB) gravity, \textit{viz}., Bardeen-EGB-AdS black holes. The Bardeen-E…