3D numerical hydrodynamical models of the precessing thick accretion disk and ON- and OFF-state generations in microquasars
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Дата
2017
Автори
Науковий керівник
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Видавець
Одеський національний університет імені І. І. Мечникова
Анотація
The thick accretion disk and donor’s
wind on the example of CYG X-1 are computed. The
main aim of the present simulations is to calculate
the precessing thick accretion disk and ON- and
OFF-state generation by the methods of 3D numerical
hydrodynamics. The main task of the present research
is to investigate the dependencies of the central disk
temperature and mass accretion rate versus time.
Non-stationary Euler’s hydrodynamical equations
are resolved by astrophysical variant of large-particle
method by Belotserkovskii & Davydov. The ON- and
OFF-state generation for the precessing thick accretion
disk was setting. The correlation between radio flux
and X-ray was setting. Our present calculations also
show that in the cases of the thick accretion disk the
jet velocities will be close to 0.24-0.26 of light speed
(see for instance SS433) and on contrary in the cases
of a thin accretion disk jet velocities will be close to
0.98-0.99 of light speed (see for instance CYG X-1).
Опис
Ключові слова
binaries – stars, jets – methods, numerical – hydrodynamics
Бібліографічний опис
Odessa Astronomical publications = Одесские астрономические публикации = Одеські астрономічні публікації