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The Euler-Heisenberg black holes with quantum electrodynamics (QED) correction are embraced by a cavity in this paper, which serves as a boundary of the black hole spacetime and contributes to the equilibrium of the system. We explore the…

General Relativity and Quantum Cosmology · Physics 2023-11-10 Qin Yu , Qi Xu , Jun Tao

We obtain a newly charged black hole with magnetic charge $q$ and coupling constant $\mu$ from the Einstein-nonlinear electrodynamics theory inspired by quasi-topological terms. We perform the shadow and geometric scattering analysis of…

General Relativity and Quantum Cosmology · Physics 2025-05-02 Yun Soo Myung

We analyze the structural and thermodynamic properties of $D$-dimensional ($D \geq 4$), asymptotically flat or Anti-de-Sitter, electrically charged black hole solutions, resulting from the minimal coupling of general nonlinear…

General Relativity and Quantum Cosmology · Physics 2019-04-24 H. Benbellout , J. Diaz-Alonso , D. Rubiera-Garcia

Dark matter sectors with hidden interactions have been of much interest in recent years. These frameworks include models of millicharged particles as well as dark sector bound states, whose constituents have electromagnetic gauge…

High Energy Physics - Phenomenology · Physics 2022-03-30 Lalit S. Bhandari , Arun M. Thalapillil

In this paper, we study the influence of string fluids on the extended thermodynamic structure and microscopic interactions of Hayward black holes by employing thermodynamic geometry as an empirical tool. Using the novel equation of state…

General Relativity and Quantum Cosmology · Physics 2025-07-01 Ankit Anand , Saeed Noori Gashti , Aditya Singh

In this work, we study the optical properties of a class of magnetically charged rotating black hole spacetimes. The black holes in question are assumed to be immersed in the quintessence field, and subsequently, the resulting black hole…

General Relativity and Quantum Cosmology · Physics 2022-06-15 Chengxiang Sun , Yunqi Liu , Wei-Liang Qian , Ruihong Yue

The accretion around the black hole plays a pivotal role in the theoretical analysis of black hole shadow, and of the black hole observation in particular. In this paper, we mainly study the shadow and observation characteristics of…

High Energy Physics - Theory · Physics 2022-01-26 Xiao-Xiong Zeng , Guo-Ping Li , Ke-Jian He

We study the effects of emission geometry on the capability to constrain black hole parameters from measurements of the shadow and inner-shadow of a Reissner-Nordstr\"om black hole. We investigate the capability to constrain mass, charge,…

High Energy Astrophysical Phenomena · Physics 2026-02-17 Julien A. Kearns , Dominic O. Chang , Daniel C. M. Palumbo , Shane W. Davis

We perform the thermodynamic and shadow radius analysis of an electrically charged black hole (EC) with electric charge $q$ and coupling constant $\mu$ obtained from the Einstein-Euler-Heisenberg nonlinear electodynamics. For $\mu=0.03$, we…

General Relativity and Quantum Cosmology · Physics 2025-03-25 Yun Soo Myung

We investigate the internal structure of charged black holes with a spherically symmetric model in the double-null coordinate system. Hawking radiation is considered using the S-wave approximation of semiclassical back-reaction and…

General Relativity and Quantum Cosmology · Physics 2011-10-18 Dong-il Hwang , Dong-han Yeom

The unusual asymptotic structure of the accelerating black holes led to ambiguity in their geometric characteristics and thermodynamic behavior. Motivated by the interesting properties of such black holes and the significant role of…

High Energy Physics - Theory · Physics 2021-08-20 Kh. Jafarzade , J. Sadeghi , B. Eslam Panah , S. H. Hendi

We construct theoretical investigation of the black hole shadow for rotating charged black hole in an asymptotically flat, axisymmetric, and stationary spacetime with Weyl corrections. This spacetime is characterized by mass ($M$), charge…

General Relativity and Quantum Cosmology · Physics 2019-06-11 Md Sabir Ali , Muhammed Amir

We investigate the astrophysical consequences of black holes in quadratic gravity, characterized by the parameters $S_0$, $S_2$, $m_0$ and $m_2$, in addition to the black hole mass $M$. To evaluate the physical validity of the fundamental…

General Relativity and Quantum Cosmology · Physics 2024-12-24 Somi Aktar , Niyaz Uddin Molla , Farook Rahaman , G. Mustafa

In this paper, the shadows cast by non-rotating and rotating modified gravity black holes are investigated. In addition to the black hole spin parameter $a$ and the inclination angle $\theta$ of observer, another parameter $\alpha$…

General Relativity and Quantum Cosmology · Physics 2019-04-08 Hui-Min Wang , Yu-Meng Xu , Shao-Wen Wei

In this paper, we study the shadow cast by two types of charged and slowly rotating black holes in Eisntein-aether theory of gravity. This two types of black holes are corresponding to two specific combinations of the coupling constants of…

General Relativity and Quantum Cosmology · Physics 2019-09-04 Tao Zhu , Qiang Wu , Mubasher Jamil , Kimet Jusufi

In this paper, we calculated the quasinormal modes (QNMs) of a charged non-commutative black hole in scalar, electromagnetic and gravitational fields by three methods. We gave the influence of non-commutative parameter $\theta$ and charge…

General Relativity and Quantum Cosmology · Physics 2023-05-12 Zening Yan , Xiaoji Zhang , Maoyuan Wan , Chen Wu

In this work, we probe the well known thermodynamic phase structure of black hole through the lens of its quasi-periodic oscillations (QPOs). Can QPOs be influenced by black hole phase transitions? Do they carry any signature of such…

General Relativity and Quantum Cosmology · Physics 2026-05-25 Bidyut Hazarika , Prabwal Phukon

In this paper, we examine the thermodynamic geometry of four-dimensional quasi-topological black holes by computing the Ruppeiner scalar curvature R which serves as an empirical tool to describe the nature of interactions among black hole…

General Relativity and Quantum Cosmology · Physics 2025-08-18 Apurba Tiwari , Randeep Kaur , Aruri Devaraju , Jaya Prakash Kode , Apparao Damarasingu , Silamanthula Hari Krishna , Akshay Gharat

In this paper, we discuss the effects of nonlinear electrodynamics (NED) on non-rotating black holes, parametrized by the field coupling parameter $\beta$ and magnetic charge parameter $P$ in detail. Particularly, we survey physical…

General Relativity and Quantum Cosmology · Physics 2022-01-06 Mert Okyay , Ali Övgün

Understanding black hole microstructure via the thermodynamic geometry can provide us with more deeper insight into black hole thermodynamics in modified gravities. In this paper, we study the black hole phase transition and Ruppeiner…

General Relativity and Quantum Cosmology · Physics 2021-08-04 Shao-Wen Wei , Yu-Xiao Liu