Redistribution of angular momentum by nonaxisymmetric instabilities in a thick accretion disk

Details Redistribution of angular momentum by nonaxisymmetric instabilities in a thick accretion disk Redistribution of angular momentum by nonaxisymmetric instabilities in a thick accretion disk

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ramb.book.....z&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Accretion Disks, Angular Momentum, Black Holes (Astronomy), Momentum Theory, Stellar Mass Accretion, Active Galactic Nuclei, Stellar Models, Three Dimensional Models, Toroids

Scientific paper

The evolution of thick accretion tori around black holes was investigated. Using three-dimensional computer models, it is shown that isentropic, pressure supported tori with constant specific angular momentum (Omega = r- 2) are unstable. Nonaxisymmetric instabilities grow and lead to the redistribution of specific angular momentum l on a short, dynamical timescale from the initial l = const to l = rqc, where qc = 0.25. Significance of these results for the models of active galactic nuclei and other jet-producing astrophysical sources is discussed.

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