N-body simulation of a clumpy torus: application to active galactic nuclei

Abstract The gravitational properties of a torus are investigated. It is shown that a torus can be formed from test particles orbiting in the gravitational field of a central mass. In this case, a toroidal distribution is achieved because of the significant spread of inclinations and eccentricities...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2012-08, Vol.424 (2), p.820-829
Main Authors: Bannikova, E. Yu, Vakulik, V. G., Sergeev, A. V.
Format: Article
Language:English
Subjects:
Astronomy
galaxies: active
galaxies: nuclei
galaxies: Seyfert
gravitation
Gravity
Orbits
Stars & galaxies
Citations: Items that cite this one
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Summary:Abstract The gravitational properties of a torus are investigated. It is shown that a torus can be formed from test particles orbiting in the gravitational field of a central mass. In this case, a toroidal distribution is achieved because of the significant spread of inclinations and eccentricities of the orbits. To investigate the self-gravity of the torus we consider the N-body problem for a torus located in the gravitational field of a central mass. It is shown that in the equilibrium state the cross-section of the torus is oval with a Gaussian density distribution. The dependence of the obscuring efficiency on torus inclination is found.
ISSN:0035-8711
1365-2966
DOI:10.1111/j.1365-2966.2012.21186.x