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The propagation and absorption of spiral density waves

Published online by Cambridge University Press:  14 August 2015

F. H. Shu
F. H. Shu*
Affiliation:
State University of New York at Stony Brook, N.Y., U.S.A.

Abstract

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An ‘anti-spiral theorem’ holds with limited validity for the neutral modes of oscillation in a stellar disk - namely, whenever the effects of stellar resonances can be ignored. In the regions between Lindblad resonances, a group of spiral waves will propagate in the radial direction with the group velocity found by Toomre. This propagation occurs with the conservation of ‘wave action’, wave energy, and wave angular momentum.

Type
Part III/Theory of Spiral Structure
Information
Symposium - International Astronomical Union , Volume 38: The Spiral Structure of our Galaxy , 1970 , pp. 323 - 325
Copyright
Copyright © Reidel 1970 

References

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