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Stationary and axisymmetric solutions of relativistic rotating stars with strong mixed poloidal and toroidal magnetic fields are obtained numerically. Because of the mixed components of the magnetic field, the underlying stationary and…

高能天体物理现象 · 物理学 2014-11-13 Koji Uryu , Eric Gourgoulhon , Charalampos Markakis , Kotaro Fujisawa , Antonios Tsokaros , Yoshiharu Eriguchi

It is known that the mass of magnetized relativistic compact star is larger than that of non-magnetized one for the same equation of state and central density, albeit the excess of mass is sizable only if the magnetic fields are strong…

We present numerical solutions for stationary and axisymmetric equilibriums of compact stars associated with extremely strong magnetic fields. The interior of the compact stars is assumed to satisfy ideal magnetohydrodynamic (MHD)…

广义相对论与量子宇宙学 · 物理学 2025-12-22 Koji Uryu , Shijun Yoshida , Eric Gourgoulhon , Charalampos Markakis , Kotaro Fujisawa , Antonios Tsokaros , Keisuke Taniguchi , Mina Zamani

We investigate the effects of the purely toroidal magnetic field on the equilibrium structures of the relativistic stars. The master equations for obtaining equilibrium solutions of relativistic rotating stars containing purely toroidal…

天体物理学 · 物理学 2008-11-26 Kenta Kiuchi , Shijun Yoshida

We present the first numerical solutions of the coupled Einstein-Maxwell equations describing rapidly rotating neutron stars endowed with a magnetic field. These solutions are fully relativistic and self-consistent, all the effects of the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 M. Bocquet , S. Bonazzola , E. Gourgoulhon , J. Novak

We find general relativistic solutions of equilibrium magnetic field configurations in magnetars, extending previous results of Colaiuda et al. (2008). Our method is based on the solution of the relativistic Grad-Shafranov equation, to…

太阳与恒星天体物理 · 物理学 2010-11-02 R. Ciolfi , V. Ferrari , L. Gualtieri , J. A. Pons

We solve the Einstein-Maxwell-Klein-Gordon system of equations and derive a compact, static axially symmetric magnetized object which is electrically neutral and made of two complex massive charged scalar fields. We describe several…

广义相对论与量子宇宙学 · 物理学 2022-11-23 Víctor Jaramillo , Darío Núñez

The exact analytical solutions for vacuum electromagnetic fields of slowly rotating magnetized compact stars in conformal gravity have been studied. Taking the realistic dipolar magnetic field configuration for the star, analytical…

广义相对论与量子宇宙学 · 物理学 2018-06-11 Bobur Turimov , Bobomurat Ahmedov , Ahmadjon Abdujabbarov , Cosimo Bambi

We present the extension of our \cocal~- Compact Object CALculator - code to compute general-relativistic initial data for binary compact-star systems. In particular, we construct quasiequilibrium initial data for equal-mass binaries with…

广义相对论与量子宇宙学 · 物理学 2015-06-04 Antonios Tsokaros , Koji Uryu , Luciano Rezzolla

We construct general relativistic models of stationary, strongly magnetized neutron stars. The magnetic field configuration, obtained by solving the relativistic Grad-Shafranov equation, is a generalization of the twisted torus model…

太阳与恒星天体物理 · 物理学 2015-05-18 R. Ciolfi , V. Ferrari , L. Gualtieri

Electromagnetic waves arise in many area of physics. Solutions are difficult to find in the general case. In this paper, we numerically integrate Maxwell equations in a 3D spherical polar coordinate system. Straightforward finite difference…

高能天体物理现象 · 物理学 2016-10-26 J. Petri

We present analytic solutions of Maxwell equations in the internal and external background spacetime of a slowly rotating magnetized neutron star. The star is considered isolated and in vacuum, with a dipolar magnetic field not aligned with…

天体物理学 · 物理学 2009-10-31 L. Rezzolla , B. J. Ahmedov , J. C. Miller

We construct three families of general magnetostatic axisymmetric exact solutions of Einstein-Maxwell equations in spherical coordinates, prolate, and oblates. The solutions obtained are then presented in the system of generalized…

广义相对论与量子宇宙学 · 物理学 2011-10-18 Cristian H. García-Duque , Gonzalo García-Reyes

This paper presents results from axisymmetric simulations of magneto-rotational stellar core collapse to neutron stars in general relativity using the passive field approximation for the magnetic field. These simulations are performed using…

天体物理学 · 物理学 2009-11-13 P. Cerdá-Durán , J. A. Font , H. Dimmelmeier

The accurate modelling of astrophysical scenarios involving compact objects and magnetic fields, such as the collapse of rotating magnetized stars to black holes or the phenomenology of gamma-ray bursts, requires the solution of the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 B. Giacomazzo , L. Rezzolla

We demonstrate a technique to generate new class of exact solutions to the Einstein-Maxwell system describing a static spherically symmetric relativistic star with anisotropic matter distribution. An interesting feature of the new class of…

综合物理 · 物理学 2020-11-25 K. Komathiraj , Ranjan Sharma

We find new exact solutions to the Einstein-Maxwell field equations which are relevant in the description of highly compact stellar objects. The relativistic star is charged and anisotropic with a quark equation of state. Exact solutions of…

广义相对论与量子宇宙学 · 物理学 2017-01-04 D. Kileba Matondo , S. D. Maharaj

We have computed models of rotating relativistic stars with a toroidal magnetic field and investigated the combined effects of magnetic field and rotation on the apparent shape (i.e. the surface deformation), which could be relevant for the…

广义相对论与量子宇宙学 · 物理学 2014-02-14 Joachim Frieben , Luciano Rezzolla

We present Hall equilibrium solutions for neutron stars crusts containing toroidal and poloidal magnetic field. Some simple cases are solved analytically while more complicated configurations are found numerically through a Gauss-Seidel…

太阳与恒星天体物理 · 物理学 2013-05-02 K. N. Gourgouliatos , A. Cumming , M. Lyutikov , A. Reisenegger

We report work towards a relativistic formulation for modeling strongly magnetized neutron stars, rotating or in a close circular orbit around another neutron star or black hole, under the approximations of helical symmetry and ideal MHD.…

广义相对论与量子宇宙学 · 物理学 2011-11-08 Charalampos Markakis , Koji Uryu , Eric Gourgoulhon
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