Unstable spiral modes in disk-shaped galaxies: Enhancement of growth rate
- 1 November 1976
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 73 (11) , 3785-3787
- https://doi.org/10.1073/pnas.73.11.3785
Abstract
An additional effect not considered in our earlier papers is found to enhance the rate of growth of spiral modes in disk-shaped galaxies. This enhanced growth appears to be attributable to the combined influence of differential rotation and tangential forces. For certain galaxy models, rapid temporal growths are possible (comparable to those found in numerical experiments), but in many real galaxies, these tendencies to extreme growth rates are probably reduced to lower levels by competing effects such as wave absorption at inner Lindblad resonance.Keywords
This publication has 2 references indexed in Scilit:
- Unstable spiral modes in disk-shaped galaxiesProceedings of the National Academy of Sciences, 1976
- The Spiral Wave of Our Galaxy Near Inner Lindblad ResonanceProceedings of the National Academy of Sciences, 1971