15 papers
Shadows and Polarimetric Signatures of Rotating Simpson-Visser Black Holes with Thick Disk Illumination
Bing-Bing Chen, Deyou Chen, Yu-Kang Wang +3
In this manuscript, we investigate the shadow and polarization images of a Simpson-Visser rotating black hole surrounded by a ballistic approximation accretion flow model. Solving…
Study of Dynamical Instability of Collapsing Charged Spherically Symmetric Anisotropic Matter Configurations within Non-Minimally Coupled Gravity
A. Rehman, M. Yousaf, Mohammed Zakarya +2
We investigate the dynamical instability and gravitational collapse of charged, spherically symmetric anisotropic matter configurations within gravity. The a…
Magnetic Reconnection and Energy Extraction from a Rotating Black Hole in the Einstein-AdS SU(N)-Nonlinear Sigma Model
Muhammad Israr Aslam, Muhammad Nawaz, Abdul Malik Sultan +3
In the present study, we analyze the power and efficiency of energy extraction via magnetic reconnection in the rotating Einstein-AdS-SU()-NLSM black hole, both in the circular-…
Impact of a Cold Dark Matter Halo on Magnetic Reconnection and Energy Extraction from Kerr-like Black Holes
Muhammad Nawaz, Abdul Malik Sultan, Muhammad Israr Aslam +2
Recently, Comisso and Asenjo introduced a new energy extraction mechanism based on magnetic reconnection. In this paper, we investigate the power and efficiency of magnetic reconne…
Magnetic Reconnection and Energy Extraction from a Rotating Black Hole in a Four-dimensional Einstein-Gauss-Bonnet Gravity
Abdul Malik Sultan, Muhammad Israr Aslam, Muhammad Nawaz +4
Recently, Comisso and Asenjo proposed a new mechanism for energy extraction based on magnetic reconnection of plasma within the ergosphere. In this paper, we analyze the power and…
Optical Appearance of a Rotating Black Hole in Nonlinear Electrodynamics Surrounded by Thin Accretion Disks
Abdul Malik Sultan, Manahil Ali, Muhammad Israr Aslam +1
This work investigates the optical appearance of a rotating black hole (BH) in nonlinear electrodynamics (NED) using two illumination models, namely a celestial sphere and a thin a…
Repetitive Penrose Process in Rastall Rotating Black Holes Immersed in Quintessence Dark Energy
Ali Ahmad Sabir, Muhammad Israr Aslam, Abdul Malik Sultan +3
We investigate the repetitive Penrose process in the spacetime of a Rastall rotating black hole surrounded by a quintessence dark energy field. After reviewing the fundamental prop…
Probing Primordial Cosmology Through BBN Observational Constraints Under Extended Gravitational Dynamics
Abdul Malik Sultan, Manahil Ali, Muhammad Israr Aslam +1
In this article, We investigate the cosmological consequences of a recently developed gravitational framework, in which the action is formulated as a general f…
Probing f(R) AdS Black Hole via Hawking Evaporation, Shadows and Thermal Fluctuations
Muhammad Israr Aslam, Saira Waheed, Rabia Saleem +1
The process of Hawking evaporation, shadows and thermal fluctuations are investigated within the fabric of f(R) AdS Black Hole (BH). Specifically, the Hawking evaporation process i…
Testing the Nature of Rotating Black Hole Shadows Surrounded by a Thin Accretion Disk within Rastall Gravity
Abdul Malik Sultan, Muhammad Israr Aslam, Manahil Ali +1
We investigate the observational appearance of a rotating black hole (BH) in Rastall gravity by analyzing its shadow and accretion signatures under different illumination environme…
Imprints of Black Hole Shadows and Polarization Patterns of Various Thick Disks: Bumblebee gravity
Muhammad Israr Aslam, Nazek Alessa, Chen-Yu Yang +1
The main objective of this study is to explore the shadow and polarization patterns of a Kerr-Sen-like BH induced from Bumblebee gravity, which, among other alternative theories of…
Visual Characteristics of a Rotating Black Hole in D Einstein-Gauss-Bonnet Gravity with Thin Accretion Disk Under EHT Constraints
Muhammad Israr Aslam, Manahil Ali, Abdul Malik Sultan +2
This study investigates the visual characteristics of a rotating black hole (BH) within the fabric of D Einstein-Gauss-Bonnet gravity illuminated with two illumination models, s…
Shadows and Polarization Images of a Four-dimensional Gauss-Bonnet Black Hole Irradiated by a Thick Accretion Disk
Xiao-Xiong Zeng, Huan Ye, Muhammad Israr Aslam +1
We adopt a general relativistic ray-tracing approach to study the shadows and polarization images of spherically symmetric Gauss-Bonnet (GB) black holes enveloped by geometrically…
Imprints of Dark Matter on the Shadow and Polarization Images of a Black Hole Illuminated by Various Thick Disks
Muhammad Israr Aslam, Rabia Saleem, Chen-Yu Yang +1
Based on two distinct thick accretion flow disk models, such as a phenomenological RIAF-like model and an analytical Hou disk model, we investigate the impact of relevant parameter…
Probing Non-rotating Black Hole in Kalb-Ramond Gravity: Imaging and Polarized Signatures Surrounded by Different Thick Accretion Flows
Xiao-Xiong Zeng, Chen-Yu Yang, Muhammad Israr Aslam +1
In this work, we consider a spherically symmetric static black hole metric in Kalb-Ramond (KR) gravity, and investigate the impact of relevant parameters on the black hole shadow a…