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In this paper charged black holes are obtained assuming that a Born-Infeld electrodynamics may arise from an interaction between the electromagnetic field and a vacuum component. In this context Cauchy horizons do not appear in the maximal…

General Relativity and Quantum Cosmology · Physics 2024-10-30 Rodrigo Maier , Manuella Corrêa e Silva

We obtain an approximate solution for the motion of a charged particle around a Schwarzschild black hole immersed in a weak dipolar magnetic field. We focus on eccentric bound orbits in the equatorial plane of the Schwarzschild black hole…

General Relativity and Quantum Cosmology · Physics 2015-06-24 Demetrios B. Papadopoulos , Ioannis Contopoulos , Kostas D. Kokkotas , Nikolaos Stergioulas

A simple exact solution of the Einstein - Maxwell field equations for charged non-rotating black hole accelerated by an external electric field is presented. The background space-time, described by the well known Bertotti-Robinson solution,…

General Relativity and Quantum Cosmology · Physics 2025-11-11 G. A. Alekseev

We revisit the problem of magnetic field generation in accretion flows onto black holes owing to the excess radiation force on electrons. This excess force may arise from the Poynting-Robertson effect. Instead of a recent claim of the…

Astrophysics · Physics 2009-11-07 G. S. Bisnovatyi-Kogan , R. V. E. Lovelace , V. A. Belinski

We compute the scattering cross section of Reissner-Nordstr\"om black holes for the case of an incident electromagnetic wave. We describe how scattering is affected by both the conversion of electromagnetic to gravitational radiation, and…

General Relativity and Quantum Cosmology · Physics 2014-09-18 Luís C. B. Crispino , Sam R. Dolan , Atsushi Higuchi , Ednilton S. de Oliveira

We investigate in detail the charged Higgs production associated with a $W$ boson at electron-positron colliders within the framework of the Type-I two-Higgs-doublet model (THDM). We calculate the integrated cross section at the LO and…

High Energy Physics - Phenomenology · Physics 2020-11-20 Qiang Yang , Ren-You Zhang , Ming-Ming Long , Shao-Ming Wang , Wen-Gan Ma , Jian-Wen Zhu , Yi Jiang

In this paper, we fist consider the shadow radius of a quantum corrected black hole proposed recently, and provide a bound on the correction parameter based on the observational data of Sgr A*. Then, the effects of the correction parameter…

General Relativity and Quantum Cosmology · Physics 2025-10-17 Yu-Heng Shu , Jia-Hui Huang

We discovered a significant anti-correlation between the mass of a supermassive black hole (SMBH), $M_{\rm BH}$, and the luminosity ratio of infrared to active galactic nuclei (AGN) Eddington luminosity, $L_{\rm IR}/L_{\rm Edd}$, over four…

Astrophysics · Physics 2011-02-11 Nozomu Kawakatu , Masatoshi Imanishi , Tohru Nagao

The dynamics of charged particle in the vicinity of event horizon of a rotating charged black hole (BH) with gravitomagnetic charge from a class of vector-tensor theories of modified gravity immersed in an axially symmetric magnetic field…

General Relativity and Quantum Cosmology · Physics 2021-10-28 Azeem Nazar , Saqib Hussain , Adnan Aslam , Takasar Hussain , Muhammad Ozair

We discuss a new analytic solution to the Einstein-Maxwell field equations that describes electrically charged black holes with a slow rotation and with a single angular momentum in all higher dimensions. We also compute the gyromagnetic…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Alikram N. Aliev

We study the bulk corresponding to tidal charged brane-world black holes. We employ a propagating algorithm which makes use of the three-dimensional multipole expansion and analytically yields the metric elements as functions of the…

High Energy Physics - Theory · Physics 2010-05-25 R. Casadio , O. Micu

The detection of gravitational waves from binary black holes sources has opened the possibility to search for electric charges and "dark" charges on black holes, the latter being candidates for dark matter. This requires theoretical…

General Relativity and Quantum Cosmology · Physics 2025-12-23 Pawan Kumar Gupta

One of the most dramatic consequences of low-scale (~1 TeV) quantum gravity in models with large or warped extra dimension(s) is copious production of mini black holes at future colliders and in ultra-high-energy cosmic ray collisions.…

High Energy Physics - Phenomenology · Physics 2015-06-25 Greg Landsberg

Black hole production at the Large Hadron Collider (LHC) was first discussed in 1999. Since then, much work has been performed in predicting the black hole cross section. In light of the start up of the LHC, it is now timely to review the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Douglas M. Gingrich

The presence of extra dimensions generically modify the spacetime geometry of a rotating black hole, by adding an additional hair, besides the mass $M$ and the angular momentum $J$, known as the `tidal charge' parameter, $\beta$. In a…

General Relativity and Quantum Cosmology · Physics 2022-09-20 Akash K Mishra , Abhirup Ghosh , Sumanta Chakraborty

We present an overview of the conjectured production of microscopic black holes as a consequence of high energy hadronic collisions at the Large Hadron Collider (LHC), CERN (Geneva, Switzerland) from this year on. Provided the presence of…

High Energy Physics - Phenomenology · Physics 2014-11-20 Marcus Bleicher , Piero Nicolini

In the tunneling framework of Hawking radiation, charged massive particle's tunneling in charged non-rotating TeV-Scale black hole is investigated. To this end, we consider natural cutoffs as a minimal length, a minimal momentum, and a…

High Energy Physics - Theory · Physics 2016-07-19 M. J. Soleimani , N. Abbasvandi , Shahidan Radiman , W. A. T. Wan Abdullah

A scalar field gravitational analog of the Reissner-Nordstrom solution is investigated. The nonlinear Newtonian model has an upper-limit of charge for a central mass which agrees with the general relativistic condition required for the…

General Relativity and Quantum Cosmology · Physics 2018-05-21 Michael R. R. Good

Magnetic connections to the plunging region can exert stresses on the inner edge of an accretion disk around a black hole. We recompute the relativistic corrections to the thin-disk dynamics equations when these stresses take the form of a…

Astrophysics · Physics 2009-10-31 Eric Agol , Julian Krolik

We suggest a simple model to study the problem of the black hole production in particle collisions. The cross-section for the classical and quantum production is analysed within this model. In particular, the possibility to form a black…

High Energy Physics - Phenomenology · Physics 2009-11-07 Sergey N. Solodukhin