The Disk Accretion of a Tidally Disrupted Star onto a Massive Black Hole

Cannizzo, John K.; Lee, Hyung Mok; Goodman, Jeremy

doi:10.1007/978-94-009-1037-9_38

The Disk Accretion of a Tidally Disrupted Star onto a Massive Black Hole

John K. Cannizzo³,
Hyung Mok Lee⁴ &
Jeremy Goodman⁵

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Part of the book series: NATO ASI Series ((ASIC,volume 290))

Abstract

We consider the tidal disruption of a star by a moderately massive black hole such as might be found in the nucleus of a galaxy like M31. The initial eccentric orbit of the stellar debris will circularize near the tidal radius after experiencing strong shocks. We study the evolution of the accretion disk produced by this torus using a time dependent α-disk model. We find that the light-to-mass ratio of the disk-plus-black-hole exceeds unity for several thousand years after disruption. Some fraction of galaxies should be extremely bright at far UV wavelengths if they contain black holes of mass 10^6–8 M _⊙.

Sloan Foundation Fellow and David and Lucille Packard Foundation Fellow

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Authors and Affiliations

Department of Physics, McMaster University, Canada
John K. Cannizzo
Canadian Institute for Theoretical Astrophysics, Canada
Hyung Mok Lee
Princeton University Observatory, USA
Jeremy Goodman

Authors

John K. Cannizzo
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Hyung Mok Lee
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Jeremy Goodman
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Editors and Affiliations

Max-Planck-Institut für Physik und Astrophysik, Institut für Astrophysik, Garching bei München, Germany
Friedrich Meyer , Juhan Frank & Emmi Meyer-Hofmeister , &
Institut für Theoretische Astrophysik, Universität Heidelberg, Heidelberg, Germany
Wolfgang J. Duschl

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Cannizzo, J.K., Lee, H.M., Goodman, J. (1989). The Disk Accretion of a Tidally Disrupted Star onto a Massive Black Hole. In: Meyer, F., Duschl, W.J., Frank, J., Meyer-Hofmeister, E. (eds) Theory of Accretion Disks. NATO ASI Series, vol 290. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1037-9_38

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DOI: https://doi.org/10.1007/978-94-009-1037-9_38
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6958-8
Online ISBN: 978-94-009-1037-9
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