| Autor: |
P. L. Palmer, J. Papaloizou |
| Rok vydání: |
1987 |
| Předmět: |
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| Zdroj: |
Structure and Dynamics of Elliptical Galaxies ISBN: 9789027725868 |
| Popis: |
We consider the linear stability of spherical stellar systems by solving the Vlasov and Poisson equations which yield a matrix eigenvalue problem to determine the growth rate. We consider this for purely growing modes in the limit of vanishing growth rate. We show that a large class of anisotropic models are unstable and derive growth rates for the particular example of generalized poly tropic models. We present a simple method for testing the stability of general anisotropic models. Our anlysis shows that instability occurs even when the degree of anisotropy is very slight. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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