Astronomy and Astrophysics – Astronomy
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.6015c&link_type=abstract
American Astronomical Society, 188th AAS Meeting, #60.15; Bulletin of the American Astronomical Society, Vol. 28, p.921
Astronomy and Astrophysics
Astronomy
Scientific paper
The morphology of adiabatic accretion flows with small non-zero specific angular momentum has been investigated in the axisymmetric and nonviscous limit. For an initial state characterized by a Bondi flow with the specific angular momentum distributed with respect to polar angle, a travelling shock wave forms which propagates more rapidly in the equatorial plane than in the plane perpendicular to it resulting in the formation of a hot torus. In cases where the incoming flow is restricted to lie near the equatorial plane, a strong wind forms directed away from this plane. In contrast with flows not restricted to equatorial plane, there is a tendency for the formation of a quasi-steady shock structure. As the height of the incoming flow is increased it is found that the resultant wind weakens. The parameter regime which delineates accretion flows characterized by a travelling shock and a nearly standing shock structure are presented.
Abramowicz Marek A.
Chen Xingming
Igumenshchev Igor V.
Taam Ronald E.
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