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Title:
Standing Rankine-Hugoniot shocks in the hybrid model flows of the black hole accretion and winds
Authors:
Chakrabarti, Sandip K.
Affiliation:
AA(Tata Institute of Fundamental Research, Bombay, India; International Center for Theoretical Physics, Trieste, Italy)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 347, Dec. 1, 1989, p. 365-372. (ApJ Homepage)
Publication Date:
12/1989
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Models, Black Holes (Astronomy), Computational Astrophysics, Rankine-Hugoniot Relation, Shock Waves, Stellar Mass Accretion, Compression Waves, Hydrodynamics, Mach Number, Stellar Winds
DOI:
10.1086/168125
Bibliographic Code:
1989ApJ...347..365C

Abstract

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.

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