| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1767213 | Advances in Space Research | 2006 | 10 Pages |
Abstract
This article reviews recent studies of dynamics of disk-shaped galaxies with special emphasis on their spiral structures. In a local version of kinetic stability theory, the very existence and the value of the critical wavelength of the spiral structure arising due to nonresonant Jeans-type instability of gravity perturbations is explained. A formal analogy between the collective oscillations in a rotating self-gravitating disk and the oscillations of a hot nonneutral plasma in a magnetic field is explored.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
E. Griv, M. Gedalin, C. Yuan,