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Radiation Hydrodynamics of 2-D Accretion Disks KCI 등재 SCOPUS

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/387745
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천문학회지 (Journal of The Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

To examine the structure and dynamics of thick accretion disks, we use a two-dimensional viscous hydrodynamic code coupled with radiation transport. The α-model and the full viscous stress-tensor description for the kinematic viscosity are used. The radiation transport is treated in the gray, flux-limited diffusion approximation. The finite difference methods used are based on an explicit-implicit method. We apply the numerical code to the Super-Eddington black-hole model for SS 433.@The result for a very small viscosity parameter a reproduces well the characteristic features of SS 433, such as the relativistic jets with ~0.26c, the small collimation degree of the jets, the mass-outflow rate of ≥ 5 × 10 -7 M⊙yr-1, and the formation of the X-ray iron emission lines.

저자
  • TORU OKUDA(Hakodate College, Hokkaido University of Education)