NUMERICAL SIMULATIONS OF BLACK HOLE ACCRETION

Автор(и)

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

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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2017-03-16

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