Abstract
Resistance to shearing stress is introduced into a model of a homogeneous, rotating, gravitating medium. It is shown that this eliminates gyroscopic stabilization, both in the presence and in the absence of viscosity. A model of gaseous and rigid media in contact is also considered. Contact with a rigid support also partially eliminates gyroscopic stabilization. This fact may result in some compromise between the theories of density waves and of a self-propagating excitation for explaining the spiral structure of galaxies.
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Antonov, V.A., Baranov, A.S. & Timoshkova, E.I. Jeans Stability of a Rotating Medium Capable of Resisting Shearing Stress. Astrophysics 45, 497–507 (2002). https://doi.org/10.1023/A:1021815431468
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DOI: https://doi.org/10.1023/A:1021815431468