Abstract
Quasilinear theory is applied to the adiabatic wave-star interaction of a differentially-rotating stellar disk of a galaxy. Under the influence of growing spiral waves the velocity dispersion of stars increases and the surface mass density becomes more peaked. The resulting distortion in phase space leads to a decrease in the growth rate of the waves, and as the result the Jeans instability should end after a few rotations of the system. The theory is confirmed by N-body computer simulations.
Original language | English |
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Pages (from-to) | 299-306 |
Number of pages | 8 |
Journal | Physica A: Statistical Mechanics and its Applications |
Volume | 205 |
Issue number | 1-3 |
DOIs | |
State | Published - 1 Apr 1994 |
Externally published | Yes |
ASJC Scopus subject areas
- Statistics and Probability
- Condensed Matter Physics