English
Related papers

Related papers: Magnetized Taub-NUT spacetime

200 papers

We present a novel solution describing magnetized spacetime outside a massive object with electric charge equipped with NUT parameter. To get the solution, we employ the Ernst magnetization to the Reissner-Nordstrom-Taub-NUT spacetime as…

General Relativity and Quantum Cosmology · Physics 2021-10-04 Haryanto M. Siahaan

We present a new solution in Einstein-Maxwell theory which can be considered as the magnetized version of Kerr-Taub-NUT solution. Some properties of the spacetime are discussed. We also compute the entropy of extremal black hole in the…

General Relativity and Quantum Cosmology · Physics 2021-08-11 Haryanto M. Siahaan

We find a new class of exact solutions in the Einstein-Maxwell theory by employing the Ernst magnetization process to the Kerr-Newman-Taub-NUT spacetimes. We study the solutions and find that they are regular everywhere. We also find the…

General Relativity and Quantum Cosmology · Physics 2021-08-10 Masoud Ghezelbash , Haryanto M. Siahaan

We construct a novel charged Taub-NUT spacetime, providing a first non-trivial example of a self-gravitating solution to the recently proposed ModMax theory, the most general (1-parametric) theory of non-linear electrodynamics that is…

High Energy Physics - Theory · Physics 2021-04-28 Alvaro Ballon Bordo , David Kubiznak , Tales Rick Perche

On Taub-NUT spacetime, we investigate hydrodynamic properties of perfect fluid spiraling inward toward the spacetime along a conical surface. On the equatorial plane of the Taub-NUT spacetime, we derive radial equations of motion with…

General Relativity and Quantum Cosmology · Physics 2010-05-25 Soon-Tae Hong , Sung-Won Kim

Using the Ehlers transformation along with the gravitoelectromagnetic approach to stationary spacetimes we start from the Morgan-Morgan disk spacetime (without radial pressure) as the seed metric and find its corresponding stationary…

General Relativity and Quantum Cosmology · Physics 2007-05-23 D. Momeni , M. Nouri-Zonoz , R. Ramazani-Arani

We wish to construct solutions of Taub-NUT spacetime in Einstein-Born-Infeld gravity in even dimensions. Since Born-Infeld theory is a nonlinear electrodynamics theory, in leads to nonlinear differential equations. However a proper…

High Energy Physics - Theory · Physics 2014-11-20 A. Khodam-Mohammadi

This article focuses on the new approach to the nature of a nut parameter $n$, usually treated as a dual charge to the mass. Instead of thinking about it as a gravitational analog of the magnetic monopole, we will show that the Taub-NUT…

General Relativity and Quantum Cosmology · Physics 2019-08-23 Remigiusz Durka

The exact solution for the electromagnetic field occuring when the Kerr-Taub-NUT compact object is immersed (i) in an originally uniform magnetic field aligned along the axis of axial symmetry (ii) in dipolar magnetic field generated by…

General Relativity and Quantum Cosmology · Physics 2008-12-18 A. A. Abdujabbarov , B. J. Ahmedov , V. G. Kagramanova

We apply thermodynamics method to generate exact solution with maximum symmetric surface for Einstein equation without solving it. The exact solutions are identified with which people have solved before. The horizons structure of solutions…

General Relativity and Quantum Cosmology · Physics 2017-01-12 Jinbo Yang , Hongwei Tan , Tangmei He , Jingyi Zhang

Writing the metric of an asymptotically flat spacetime in Bondi coordinates provides an elegant way of formulating the Einstein equation as a characteristic value problem. In this setting, we find that a specific class of asymptotically…

High Energy Physics - Theory · Physics 2021-02-24 Hadi Godazgar , Mahdi Godazgar , C. N. Pope

Based on symmetries Taub-NUT shares with Bertrand spacetime, we cast it as the latter with magnetic fields. Its nature as a Bianchi-IX gravitational instanton and other related geometrical properties are reviewed. We provide an easy…

High Energy Physics - Theory · Physics 2016-09-15 Sumanto Chanda , Partha Guha , Raju Roychowdhury

We reduce the Taub-NUT metric dimensionally to three spatial dimensions by treating time as an extra curled dimension, and end up with the 3-dimensional Einstein field equations plus a corresponding Maxwell type equations for a…

High Energy Physics - Theory · Physics 2026-01-29 Mehran Z-Abyaneh , Mehrdad Farhoudi

Recently a purportedly novel solution of the vacuum Einstein field equations was discovered: it supposedly describes an asymptotically flat twisted black hole in 4-dimensions whose exterior spacetime rotates in a peculiar manner -- the…

General Relativity and Quantum Cosmology · Physics 2017-01-24 Yen Chin Ong

We revisit the Taub-NUT solution of the Einstein equations without time periodicity condition, showing that the Misner string is still fully transparent for geodesics. In this case, analytic continuation can be carried out through both…

High Energy Physics - Theory · Physics 2015-11-20 Gérard Clément , Dmitri Gal'tsov , Mourad Guenouche

A single master equation is given describing spin $s\le2$ test fields that are gauge- and tetrad-invariant perturbations of the Kerr-Taub-NUT spacetime representing a source with mass $M$, gravitomagnetic monopole moment $-\ell$ and…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Donato Bini , Christian Cherubini , Robert T. Jantzen , Bahram Mashhoon

The paper addresses the quantization of minisuperspace cosmological models, with application to the Taub Model. By desparametrizing the model with an extrinsic time, a formalism is developed in order to define a conserved Schr\"{o}dinger…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Gabriel Catren , Rafael Ferraro

We present a novel solution obeying classical equation of motion in the low energy limit of heterotic string theory. The solution represents a rotating mass with electric charge and gravitomagnetic monopole moment. The corresponding…

General Relativity and Quantum Cosmology · Physics 2020-12-02 Haryanto M. Siahaan

The problem of singularities associated with Dirac strings and closed timelike curves in classical solutions of pure gravity is analyzed here. A method to eliminate these is introduced and established first for the Taub-NUT geometry. This…

General Relativity and Quantum Cosmology · Physics 2019-07-03 Suvikranth Gera , Sandipan Sengupta

We present a class of higher dimensional solutions to Einstein-Maxwell equations in d-dimensions. These solutions are asymptotically locally flat, de-Sitter, or anti-de Sitter space-times. The solutions we obtained depend on two extra…

High Energy Physics - Theory · Physics 2014-11-18 Adel M. Awad
‹ Prev 1 2 3 10 Next ›