A Gravitational Instability-Driven Viscosity in Self-Gravitating Accretion Disks

Wolfgang J. Duschl (1 , 2 , 3) , Markward Britsch (1) ((1) Institut f\"ur Theoretische Astrophysik , Universit\"at Heidelberg , Germany , (2) now at: Institut f\"ur Theoretische Physik und Astrophysik , Universit\"at zu Kiel

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(3) Steward Observatory The University of Arizona Tucson AZ USA)

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classification 🌌 astro-ph

keywords accretionblackdisksgravitationalself-gravitatingviscosityaccountcosmological

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We derive a viscosity from gravitational instability in self-gravitating accretion disks, which has the required properties to account for the observed fast formation of the first super-massive black holes in highly redshifted quasars and for the cosmological evolution of the black hole-mass distribution.

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A Gravitational Instability-Driven Viscosity in Self-Gravitating Accretion Disks

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