| Autor: |
Casti AR; Department of Applied Physics, Columbia University, New York, New York 10027, USA., Morrison PJ, Spiegel EA |
| Jazyk: |
angličtina |
| Zdroj: |
Annals of the New York Academy of Sciences [Ann N Y Acad Sci] 1998 Dec 30; Vol. 867, pp. 93-108. |
| DOI: |
10.1111/j.1749-6632.1998.tb11252.x |
| Abstrakt: |
We study the longitudinal instabilities of two interpenetrating fluids interacting only through gravity. When one of the constituents is of relatively low density, it is possible to have a band of unstable wavenumbers well separated from those involved in the usual Jeans instability. If the initial streaming is large enough, and there is no linear instability, the indefinite sign of the free energy has the possible consequence of explosive interactions between positive and negative energy modes in the nonlinear regime. The effect of dissipation on the negative energy modes is also examined. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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