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A linear thermal stability analysis for the vertical structure of alpha model accretion disksThe linear equations that describe the thermal stability of the convective and radiative vertical structure of an alpha model accretion disk are derived. For a specific model chosen to be representative of a dwarf nova disk, it is found that the eigenfunction for the temperature shows large excursions in the zone of partial ionization, but that the eigenfunctions for the unstable fundamental mode perturbations of the vertical distance and flux are nearly constant over the vertical extent of the disk. The growth of any instability is thus nearly homologous and the stability criteria derived for vertically averaged structures represent an adequate approximation.
Document ID
19870053396
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Saio, Hideyuki
(Tokyo, University Japan)
Cannizzo, John K.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Wheeler, J. Craig
(Texas, University Austin, United States)
Date Acquired
August 13, 2013
Publication Date
May 15, 1987
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 316
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
87A40670
Funding Number(s)
CONTRACT_GRANT: NGR-22-007-272
CONTRACT_GRANT: NSG-7232
Distribution Limits
Public
Copyright
Other

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