Standing Rankine-Hugoniot shocks in the hybrid model flows of the black hole accretion and winds

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/168125· OSTI ID:7194038

Chakrabarti, S K ^[1]

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1. Tata Institute of Fundamental Research, Bombay (India) International Center for Theoretical Physics, Trieste (Italy)

This paper presents all the Rankine-Hugoniot shock solutions for the stationary, axially symmetric and rotating adiabatic flows of small transverse thickness in the black hole potential. The recently proposed hybrid model is used to treat the flows which include shocks. It is shown that, for given initial and final states of the flow, there can be as many as four formal shock locations in both the accretion and the winds. Only two (three) of these locations are acceptable for accretion onto black holes (neutron stars), and three of these locations are acceptable for winds. It is shown that the question of the multiplicity of the shocks cannot be resolved by local stability analysis of the shocks. In addition, the properties of the isentropic compression waves and the isothermal shocks are briefly studied. 17 refs.

• OSTI ID: 7194038
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 347; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADIABATIC PROCESSES
BLACK HOLES
EQUATIONS
FLUID MECHANICS
HYDRODYNAMICS
MACH NUMBER
MATHEMATICAL MODELS
MECHANICS
RANKINE-HUGONIOT EQUATIONS
SHOCK WAVES
STAR ACCRETION
STAR EVOLUTION
STELLAR ACTIVITY
STELLAR WINDS
VELOCITY