Astronomy and astrophysics Galactic structure and dynamics Concept
Epicyclic frequency
Summary
The epicyclic frequency is the frequency of the radial oscillation of a star on a nearly circular orbit in a disc. It is fixed by the rotation curve of the disc. It enters the theory of spiral arms, of resonances, and of the stability of discs.
Where this leads
6 pages build on this one.
Further reading
About this page
| Tag | GK34V4WF2V |
|---|---|
| URI | m2://GK34V4WF2V |
| Kind | concept |
| Writing | W0 stub |
| MSC | 85A05, 70F15 |
| Same as | |
| Changed | 3 November 2026 |
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Used by
- Density wave theory
- Magnetorotational instability
- Lindblad resonance
- Oort constants
- Toomre's stability criterion
- Goldreich–Tremaine theory of disk–satellite interaction