Journal Article

<i>N</i>-body simulation of a clumpy torus: application to active galactic nuclei

E. Yu. Bannikova, V. G. Vakulik and A. V. Sergeev

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 424, issue 2, pages 820-829
Published in print August 2012 | ISSN: 0035-8711
Published online August 2012 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2012.21186.x
N-body simulation of a clumpy torus: application to active galactic nuclei

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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.

Keywords: gravitation; galaxies: active; galaxies: nuclei; galaxies: Seyfert

Journal Article.  8101 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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