NUMERICAL SIMULATIONS OF BLACK HOLE ACCRETION

Автор(и)

  • D. Molteni Department of Physical and Astronomical Sciences, Palermo University, Via Archirafi, 36, Palermo, 90123 Italy, Italy
  • V. Teresi Department of Physical and Astronomical Sciences, Palermo University, Via Archirafi, 36, Palermo, 90123 Italy, Italy
  • G. Gerardi Department of Physical and Astronomical Sciences, Palermo University, Via Archirafi, 36, Palermo, 90123 Italy, Italy
  • M. A. Valenza Department of Physical and Astronomical Sciences, Palermo University, Via Archirafi, 36, Palermo, 90123 Italy, Italy

DOI:

https://doi.org/10.18524/1810-4215.1999.12.93103

Ключові слова:

Accretion disks, shock waves, black holes

Анотація

A resume of fruitful interaction between analytical and numerical approach to the subjectof accretion disks around black holes is here presented. We review time dependent simulations of unviscous and moderately viscous accretion flows. Convection or pressure dominated flows admit subkeplerian solutions with or without shocks. The viscous adiabatic solutions, however, don't match smoothly to the keplerian disk solutions. We show also that many different type of mechanisms can trigger quasi periodic oscillations of the flow and consequently of the emitted radiation.

Посилання

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Опубліковано

2017-03-16

Номер

Том 12 (1999)

Розділ

Статті

Ліцензія

Авторське право (c) 2017 Odessa Astronomical Publications

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Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial 4.0 International License.

Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року