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General relativistic model for the gravitational field of active galactic nuclei surrounded by a disk

D. Vogt*

P. S. Letelier

  • Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, 13083-970 Campinas, S. P., Brazil

  • Departamento de Matemática Aplicada-IMECC, Universidade Estadual de Campinas, 13083-970 Campinas, S. P., Brazil

  • *Electronic address: danielvt@ifi.unicamp.br
  • Electronic address: letelier@ime.unicamp.br

Phys. Rev. D 71, 044009 – Published 9 February, 2005

DOI: https://doi.org/10.1103/PhysRevD.71.044009

Abstract

An exact but simple general relativistic model for the gravitational field of active galactic nuclei is constructed, based on the superposition in Weyl coordinates of a black hole, a Chazy-Curzon disk and two rods, which represent matter jets. The influence of the rods on the matter properties of the disk and on its stability is examined. We find that in general they contribute to destabilize the disk. Also the oscillation frequencies for perturbed circular geodesics on the disk are computed, and some geodesic orbits for the superposed metric are numerically calculated.

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