63 citations · 210 across the 23 of their papers we have counts for
25 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…
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…
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…
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…
Probing Horndeski Gravity via Kerr Black Hole: Insights from Thin Accretion Disks and Shadows with EHT Observations
Xiao-Xiong Zeng, Chen-Yu Yang, M. Israr Aslam +1
In this study, we have considered the Kerr-like black hole (BH) model in Horndeski gravity and analyse the visual characteristics of shadow images under two illumination models, su…
Kerr-like Black Hole Surrounded by Cold Dark Matter Halo: The Shadow Images and EHT Constraints
Xiao-Xiong Zeng, Chen-Yu Yang, M. Israr Aslam +2
Here we provide shadow images of a Kerr-like black hole (BH) in cold dark matter (CDM) halo illuminated with a celestial light source and a thin accretion disk. The impact of spin…
Shadow Images of Ghosh-Kumar Rotating Black Hole Illuminated By Spherical Light Sources and Thin Accretion Disks
Chen-Yu Yang, M. Israr Aslam, Xiao-Xiong Zeng +1
This study investigates the astronomical implications of the Ghosh-Kumar rotating Black Hole (BH), particularly its behaviour on shadow images, illuminated by celestial light sourc…
Holographic Einstein Ring of a Charged Rastall AdS Black Hole with Bulk Electromagnetic Field
M. Israr Aslam, Xiao-Xiong Zeng, Rabia Saleem +1
We study the Einstein images of a charged Rastall AdS black hole (BH) within the fabric of AdS/CFT correspondence. Considering the holographic setup, we analyze the amplitude of th…
Constant-roll Warm Inflation within Rastall Gravity
Rabia Saleem, Iqra Shahid, M. Israr Aslam +1
This research paper used a newly proposed strategy for finding the exact inflationary solutions to the Friedman equations in the context of Rastall theory of gravity (RTG), which i…
Holographic Einstein Rings of Black Holes in Scalar-Tensor-Vector Gravity
Xiao-Xiong Zeng, M. Israr Aslam, Rabia Saleem +1
With the help of AdS/CFT correspondence, we analyze the holographic Einstein images via the response function of the complex scalar field as a probe wave on the AdS Schwarzschild s…
Structure-preserving numerical simulations of test particle dynamics around slowly rotating neutron stars within Hartle-Thorne approach
Misbah Shahzadi, Martin Kolos, Rabia Saleem +2
In this paper, we explore the chaotic signatures of the geodesic dynamics for particles moving in the slowly rotating Hartle-Thorne spacetime; an approximate solution of vacuum Ein…
Testing alternative spacetimes by high-frequency quasi-periodic oscillations observed in microquasars and active galactic nuclei
Misbah Shahzadi, Martin Kološ, Rabia Saleem +1
In this article, we try to capture the influence of deviation from standard Kerr black hole spacetime on observed high-frequency quasi-periodic oscillations signal. We explore the…
Holographic Einstein Rings of an AdS Black Hole in Massive Gravity
Xin-Yun Hu, M. Israr Aslam, Rabia Saleem +1
In the context of holography, the Einstein ring of an AdS black hole (BH) in massive gravity (MG) is depicted. An oscillating Gaussian source on one side of the AdS boundary propag…
The Optical Appearance of Charged Four-Dimensional Gauss-Bonnet Black Hole with Strings Cloud and Non-Commutative Geometry Surrounded by Various Accretions Profiles
Xiao-Xiong Zeng, M. Israr Aslam, Rabia Saleem
Thanks for the releasing image of supermassive black holes (BHs) by the event horizon telescope (EHT) at the heart of the galaxy. After the discovery of this mysterious objec…
Cosmological Evolution via Interacting/Non-Interacting Holographic Dark Energy Model for Curved FLRW Space-time in Rastall Gravity
Rabia Saleem, Shahnila
In this work, we explore the phenomenon of cosmic evolution using curved FLRW space-time bounded by apparent horizon with a specific holographic cut-off. To this end, we use the fr…
Inflationary Solution of Hamilton Jacobi Equations during Weak Dissipative Regime
R. Saleem, M. Zubair
In this paper, an elegant mathematical approach is introduced to solve the equations of warm inflationary model without using extra approximations other than slow-roll. This import…
Consistency of Anisotropic Inflation during Rapid Oscillations with Planck 2015 Data
Rabia Saleem
This paper is aimed to study the compelling issue of cosmic inflation during rapid oscillations using the framework of non-minimal derivative coupling. To this end, an anisotropic…
Inflationary Weak Anisotropic Model with General Dissipation Coefficient
M. Sharif, Rabia Saleem
This paper explores the dynamics of warm intermediate and logamediate inflationary models during weak dissipative regime with a general form of dissipative coefficient. We analyze…
Study of Inflationary Generalized Cosmic Chaplygin Gas for Standard and Tachyon Scalar Fields
M. Sharif, Rabia Saleem
We consider an inflationary universe model in the context of generalized cosmic Chaplygin gas by taking matter field as standard and tachyon scalar fields. We evaluate the correspo…
Thermodynamics in Kaluza-Klein Universe
M. Sharif, Rabia Saleem
This paper is devoted to check the validity of laws of thermodynamics for Kaluza-Klein universe in the state of thermal equilibrium, composed of dark matter and dark energy. The ge…
Warm Anisotropic Inflationary Universe Model
M. Sharif, Rabia Saleem
This paper is devoted to study the warm inflation using vector fields in the background of locally rotationally symmetric Bianchi type I universe model. We formulate the field equa…
Statefinder Diagnostic for Dark Energy Models in Bianchi I Universe
M. Sharif, Rabia Saleem
In this paper, we investigate the statefinder, the deceleration and equation of state parameters when universe is composed of generalized holographic dark energy or generalized Ric…