Physics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pthph..80..449k&link_type=abstract
Progress of Theoretical Physics, Vol. 80, No. 3, pp. 449-467
Physics
3
Scientific paper
The axisymmetric structures of relativistic accretion tori arecalculated taking into account all components of the flow velocity ofmatter. Angular momentum distributions are approximated by a power lawof the form, l_phi = c_phi {lambdaphi}(n) , where lambdaphiis the von Zeipelparameter. The radial velocity of the flow must be subsonic at theinner boundary of any torus, implying the flow is subsonic throughoutthe whole torus. Otherwise, the matter's velocity exceeds the velocityof light in the region between the event horizon and the innerboundary of any torus. Therefore, accretion tori with subsonic floware calculated. We investigate the effects of various parametersinvolved in the basic equations which govern the structure of theaccretion tori. We also calculate the required shear stress whichreproduces the assumed angular momentum distributions. The radial andthe meridional velocities play a minor role in the structure of thetori but play an important role in determining the accretion rate andthe angular momentum transport due to shear stress.
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