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In this paper, we explore the effect of non-linear electrodynamics (NLED) parameters and magnetic charges on various aspects of black holes, like how they bend light, how they emit radiation, and how they appear as a shadow by considering a…

General Relativity and Quantum Cosmology · Physics 2024-06-11 Akhil Uniyal , Sayan Chakrabarti , Reggie C. Pantig , Ali Övgün

This paper, the second of a series on radiation-regulated accretion onto black holes (BHs) from galactic scales, focuses on the effects of radiation pressure and angular momentum of the accreting gas. We simulate accretion onto…

Cosmology and Nongalactic Astrophysics · Physics 2012-02-13 KwangHo Park , Massimo Ricotti

The differential scattering cross section of the massless scalar field localized on the 3-brane of charged static black holes in the ADD model is analyzed. While results valid in the entire range of scattering angle can be obtained only via…

General Relativity and Quantum Cosmology · Physics 2018-02-13 Ednilton S. de Oliveira

The gravitational wave signature of a binary black hole (BBH) merger is dependent on its component mass and spin. If such black holes originate from rapidly rotating progenitors, the large angular momentum reserve in the star could drive a…

High Energy Astrophysical Phenomena · Physics 2024-09-26 Sohan Ghodla , J. J. Eldridge

In this paper a lower bound for the ADM mass is given in terms of the angular momenta and charges of black holes present in axisymmetric initial data sets for the Einstein-Maxwell equations. This generalizes the mass-angular momentum-charge…

General Relativity and Quantum Cosmology · Physics 2016-08-24 Marcus Khuri , Gilbert Weinstein

We investigate how dark energy affects atom-field interaction. To this end, we consider acceleration radiation of a freely falling atom close to a Schwarzschild black hole (BH) in the presence of dark energy characterized by a positive…

General Relativity and Quantum Cosmology · Physics 2023-05-31 Syed Masood A. S. Bukhari , Imtiyaz Ahmad Bhat , Chenni Xu , Li-Gang Wang

In an (Anti-) de Sitter space and a charged black hole the Schwinger effect is either enhanced by the Hawking radiation or suppressed by the negative curvature. We use the contour integral method to calculate the production of charged pairs…

High Energy Physics - Theory · Physics 2016-03-16 Sang Pyo Kim

We investigate the absorption and scattering of a charged massive scalar field by a charged Horndeski black hole using both the approximation or classical geometric method and the partial wave method and compare the numerical and analytical…

General Relativity and Quantum Cosmology · Physics 2024-12-24 Qian Li , Qianchuan Wang , Junji Jia

In this article we extend the variational technique for maximal volume estimation of a black hole developed by Christodoulou and Rovelli (CR) to the case of a charged BTZ black hole in 2+1 dimensions. The technique involves a study of the…

General Relativity and Quantum Cosmology · Physics 2024-07-02 Suraj Maurya , Sashideep Gutti , Rahul Nigam

We study phases of five-dimensional three-charge black holes with a circle in their transverse space. In particular, when the black hole is localized on the circle we compute the corrections to the metric and corresponding thermodynamics in…

High Energy Physics - Theory · Physics 2010-10-27 Troels Harmark , Kristjan R. Kristjansson , Niels A. Obers , Peter B. Ronne

Higher curvature gravity usually has complicated field equations, and solving them analytically is strenuous. In this work, we obtain an analytical charged black hole (BH) solution in higher curvature gravity using the thermodynamics of…

General Relativity and Quantum Cosmology · Physics 2025-05-26 Seyed Naseh Sajadi , Supakchai Ponglertsakul

We study the phenomenological implications stemming from the dependence of the tidal charge on the brane thickness $L$ for the evaporation and decay of microscopic black holes. In general, the larger $L$, the longer are the black hole…

High Energy Physics - Phenomenology · Physics 2014-11-20 Roberto Casadio , Benjamin Harms , Octavian Micu

We have calculated the cross section of the process $e^+e^- \to W^{\pm}H^{\mp}$ at the linear collider in the supersymmetrical two-higgs-doublet model. We find that the cross section decreases rapidly with the increment of $\tan\beta$, and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Shou Hua Zhu

In this paper, we discuss optical properties of the topologically charged rotating black hole. We study the horizon, the photon region, the shadow of the black hole and other observables. The results show that in addition to the black hole…

General Relativity and Quantum Cosmology · Physics 2022-11-09 Hao-Ran Zhang , Peng-Zhang He , Lei-Shao , Yuan Chen , Xian-Ru Hu

We consider extreme mass ratio inspirals during which an electrically charged compact object with mass $m_p$ and the charge to mass ratio $q$ inspirals around a Schwarzschild black hole of mass $M$. Using the Teukolsky and generalized…

General Relativity and Quantum Cosmology · Physics 2022-07-13 Chao Zhang , Yungui Gong

We investigate the effects of a modified dispersion relation proposed by Majhi and Vagenas on the Reissner-Nordstrom black hole thermodynamics in a universe with large extra dimensions. It is shown that entropy, temperature and heat…

High Energy Physics - Theory · Physics 2016-04-12 A. D. Kamali , Pouria Pedram

It is argued that the cross section for production of large black holes, for which a semiclassical description is applicable, cannot be given by the geometric area of the black hole horizon, as claimed recently in the literature. Rather the…

High Energy Physics - Phenomenology · Physics 2010-05-28 M. B. Voloshin

We consider the inspiral of black holes carrying U(1) charge that is not electromagnetic, but corresponds to some dark sector. In the weak-field, low-velocity regime, the components follow Keplerian orbits. We investigate how the orbital…

General Relativity and Quantum Cosmology · Physics 2021-03-23 Øyvind Christiansen , Jose Beltrán Jiménez , David F. Mota

We calculate the inclusive cross section of double Z-boson production within large extra dimensions at the Large Hadron Collider (LHC). Using perturbatively quantized gravity in the ADD model we perform a first order calculation of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Martin Kober , Benjamin Koch , Marcus Bleicher

In this paper, we analytically investigate the noncommutative effects of a charged black hole on holographic superconductors. The effects of charge of the black hole is investigated in our study. Employing the Sturm-Liouville eigenvalue…

High Energy Physics - Theory · Physics 2018-10-31 Diganta Parai , Debabrata Ghorai , Sunandan Gangopadhyay