Jeans Stability of a Rotating Medium Capable of Resisting Shearing Stress

Details Jeans Stability of a Rotating Medium Capable of Resisting Shearing Stress Jeans Stability of a Rotating Medium Capable of Resisting Shearing Stress

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ap.....45..497a&link_type=abstract

Astrophysics (English translation of Astrofizika), v. 45, Issue 4, p. 497-507 (2002).

Astronomy and Astrophysics

Astrophysics

Gravitation - Medium - Gyroscopic Stabilization

Scientific paper

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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