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We study quantum gravity effects on radiation properties of thin accretion disks around a renormalization group improved (RGI-) Schwarzschild black hole. In the infrared (IR) limit of the asymptotically safe theory with higher derivatives,…

General Relativity and Quantum Cosmology · Physics 2021-10-04 Fabián H. Zuluaga , Luis A. Sánchez

We study quantum gravity effects on the thermodynamic character and the radiation process of the thin accretion disks around Schwarzschild-like black hole. The quantum gravity correction is invoked through the framework of generalization of…

General Relativity and Quantum Cosmology · Physics 2022-12-07 Himangshu Barman , Mohamed Moussa , Homa Shababi , Anisur Rahaman

In the framework of the Asymptotic Safety scenario for quantum gravity, we analyze quantum gravity modifications to the thermal characteristics of a thin accretion disk spiraling around a renormalization group improved (RGI-) Kerr black…

General Relativity and Quantum Cosmology · Physics 2024-07-01 Luis A. Sánchez

The use of physical phenomena in the strong-field regime has become a primarily methodology for probing quantum-corrected gravity. This paper investigates periodic orbits, gravitational waves, and accretion disk radiation for a…

General Relativity and Quantum Cosmology · Physics 2026-03-11 Shilong Huang , Jiawei Chen , Jinsong Yang

In this paper we have investigated the dynamics of neutral, electrically charged and magnetized particles around renormalized group improved (RGI) Schwarzschild black hole in the presence of external asymptotically uniform magnetic field.…

General Relativity and Quantum Cosmology · Physics 2020-11-02 Javlon Rayimbaev , Ahmadjon Abdujabbarov , Mubasher Jamil , Bobomurat Ahmedov , Wen-Biao Han

Recent work in the literature has studied the quantum-mechanical decay of a Schwarzschild-like black hole, formed by gravitational collapse, into almost-flat space-time and weak radiation at a very late time. The relevant quantum amplitudes…

High Energy Physics - Theory · Physics 2009-11-11 Elisabetta Di Grezia , Giampiero Esposito , Gennaro Miele

In this paper we investigate the problem of ordinary baryonic matter accretion onto the noncommutative geometry inspired Schwarzschild black hole. The fundamental equations governing the spherically symmetric steady state matter accretion…

General Relativity and Quantum Cosmology · Physics 2018-05-18 Biplab Paik , Sunandan Gangopadhyay

In this paper, we study the motion of neutral and electrically charged particles in the vicinity of a deformed-Schwarzschild black hole inspired by Loop Quantum Gravity (LQG). To examine the motion of an electrically charged test particle,…

General Relativity and Quantum Cosmology · Physics 2025-11-26 Kourosh Nozari , Sara Saghafi , Milad Hajebrahimi , Kimet Jusufi

Under the premise that quantum gravity becomes non-negligible, higher-order corrections of non-commutative geometry dominate. In this paper, we studied the thermodynamics of high-order corrections for Schwarzschild-AdS black hole with…

General Relativity and Quantum Cosmology · Physics 2025-03-14 Baoyu Tan

We investigate a family of spherically symmetric, static, charged regular black hole solutions derived within the framework of Einstein-nonlinear electrodynamics. Our study focuses on examining the characteristics of accretion disks in the…

General Relativity and Quantum Cosmology · Physics 2024-04-25 Yergali Kurmanov , Kuantay Boshkayev , Talgar Konysbayev , Orlando Luongo , Nazym Saiyp , Ainur Urazalina , Gulfeiruz Ikhsan , Gulnara Suliyeva

The projection effect of an anisotropic accretion disk causes its electromagnetic radiation to depend on the emission angle. Although this dependency has the potential to influence the observational characteristics of black holes, it has…

General Relativity and Quantum Cosmology · Physics 2024-09-10 Dan Li , Shiyang Hu , Chen Deng , Xin Wu

We provide a new exact solution of the Einstein equations which generalizes the noncommutative geometry inspired Schwarzschild metric, we previously obtained. We consider here more general relations between the energy density and the radial…

General Relativity and Quantum Cosmology · Physics 2010-01-06 Piero Nicolini , Euro Spallucci

In this paper, optical properties of renormalization group improved (RGI) Schwarzschild black hole (BH) are investigated in plasma medium. Starting from the equations of motions in plasma medium, we have shown how the shadow radius of the…

General Relativity and Quantum Cosmology · Physics 2023-02-01 Farruh Atamurotov , Mubasher Jamil , Kimet Jusufi

In this paper we construct a non-commutative gauge theory for the deformed metric corresponding to the modified structure of a gravitational field in the case of Yukawa-Schwarzschild non-commutative space-time. The thermodynamic properties…

General Relativity and Quantum Cosmology · Physics 2022-06-15 Slimane Zaim , Hadjar Rezki

We construct the relativistic standard steady, optically thick, cold and geometrically thin accretion disk around a distorted Schwarzschild black hole. The distortion of this static and axially symmetric black hole solution, is connected to…

High Energy Astrophysical Phenomena · Physics 2025-02-14 Shokoufe Faraji , Eva Hackmann

In this study, we investigate the geodesic motion of a test particle around the Schwarzchild black hole in a $\kappa$-deformed space-time. We compute a modified Lagrangian to obtain the $\kappa$-deformed effective potential and find the…

General Relativity and Quantum Cosmology · Physics 2024-05-10 Dilip Kumar , Suman Kumar Panja , Abhisek Saha , Soma Sanyal

We investigate the structure and emission properties of a thin accretion disk around a rotating charged black hole described by an effective higher-curvature-inspired spacetime, constructed as a phenomenological deformation of the Kerr…

General Relativity and Quantum Cosmology · Physics 2026-05-14 Mohammad Hassani , Kourosh Nozari , Sara Saghafi

We investigate the impact of quantum gravity on accretion onto a modified Schwarzschild black hole within the context of the generalized uncertainty principle (GUP). The minimal measurable length connected to GUP modifies the Schwarzschild…

General Relativity and Quantum Cosmology · Physics 2022-12-08 Anisur Rahaman

Accretion disks, swirling structures of matter spiraling into black holes, play a pivotal role in our understanding of binary star systems and their intricate evolutionary processes. While current models often simplify these complex…

High Energy Astrophysical Phenomena · Physics 2025-05-26 Seyyed Masoud Hoseyni , Jamshid Ghanbari , Mahboobe Moeen Moghaddas

In this paper, we used the non-commutative (NC) gauge theory of gravity to investigate the thermodynamic properties of a deformed Schwarzschild black hole (SBH). Our results present a new scenario of black hole evaporation. As a first step,…

General Relativity and Quantum Cosmology · Physics 2023-10-04 Abdellah Touati , Slimane Zaim
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