Thursday, November 22, 2012

1211.4941 (Antonio C. Gutiérrez-Piñeres et al.)

Conformastatic disk-haloes in Einstein-Maxwell gravity    [PDF]

Antonio C. Gutiérrez-Piñeres, Guillermo A. González, Hernando Quevedo
We present a relativistic model describing a thin disk surrounded by a halo in presence of an electromagnetic field. The model is obtained by solving the Einstein-Maxwell equations on a particular conformastatic spacetime background and by using the distributional approach for the energy-momentum tensor. A class of solutions is obtained in which the gravitational and electromagnetic potentials are completely determined by a harmonic function only. A particular solution is given that is asymptotically flat and singularity-free, and satisfies all the energy conditions.
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