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Global Instabilities of a Galaxy Model

Published online by Cambridge University Press:  04 August 2017

Jon Haass
Jon Haass*
Affiliation:
Department of Mathematics, Massachusetts Institute of Technology

Extract

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A simple two-component fluid model of a galaxy is analyzed numerically. For this equilibrium configuration a large number of unstable spiral modes is found. It is of particular interest that some of these modes are well described by the asymptotic theory developed for tightly wound trailing spirals, while others are best understood in terms of the swing formalism which includes both leading and trailing waves.

Type
II. Spiral Structure
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 121 - 124
Copyright
Copyright © Reidel 1983 

References

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Toomre, A.: 1981, The Structure and Evolution of Normal Galaxies, Fall, S.M. and Lynden-Bell, D. eds., Cambridge University Press, pp. 111–136.Google Scholar