Exact Relativistic Static Charged Dust Disks and Non-axisymmetric Structures
نویسنده
چکیده
The well-known “displace, cut and reflect” method used to generate disks from given solutions of Einstein field equations is applied to the superposition of two extreme Reissner-Nordström black holes to construct disks made of charged dust and also non-axisymmetric planar distributions of charged dust on the z = 0 plane. They are symmetric with respect to two or one coordinate axes, depending whether the black holes have equal or unequal masses, respectively. For these non-axisymmetric distributions of matter we also study the effective potential for geodesic motion of neutral test particles. PACS: 04.20.Jb, 04.40.-b, 04.40.Nr
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