Exact Relativistic Magnetized Haloes around Rotating Disks

Antonio C. Gutiérrez-Piñeres and Abraão J. S. Capistrano

Advances in Mathematical Physics, 2015, vol. 2015, 1-13

Abstract:

The study of the dynamics of magnetic fields in galaxies is one of important problems in formation and evolution of galaxies. In this paper, we present the exact relativistic treatment of a rotating disk surrounded by a magnetized material halo. The features of the halo and disk are described by the distributional energy-momentum tensor of a general fluid in canonical form. All the relevant quantities and the metric and electromagnetic potentials are exactly determined by an arbitrary harmonic function only. For instance, the generalized Kuzmin-disk potential is used. The particular class of solutions obtained is asymptotically flat and satisfies all the energy conditions. Moreover, the motion of a charged particle on the halo is described. As far as we know, this is the first relativistic model describing analytically the magnetized halo of a rotating disk.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlamp:916026

DOI: 10.1155/2015/916026

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