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

Authors

  • E. Yu. Bannikova,

    Corresponding author
    1. Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Krasnoznamennaya 4, 61022 Kharkov, Ukraine
    2. Karazin Kharkov National University, Svobody Sq. 4, 61022 Kharkov, Ukraine
      E-mail: bannikova@astron.kharkov.ua
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  • V. G. Vakulik,

    Corresponding author
    1. Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Krasnoznamennaya 4, 61022 Kharkov, Ukraine
    2. Karazin Kharkov National University, Svobody Sq. 4, 61022 Kharkov, Ukraine
      Deceased.
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  • A. V. Sergeev

    1. Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Krasnoznamennaya 4, 61022 Kharkov, Ukraine
    2. Karazin Kharkov National University, Svobody Sq. 4, 61022 Kharkov, Ukraine
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E-mail: bannikova@astron.kharkov.ua

Deceased.

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.

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