Astrophysics (Index)About

corotation resonance

(an orbital resonance with the same frequency as the orbit)

A corotation resonance is an orbital resonance in which the resonant bodies orbit (e.g., around a larger body) with the same orbital period. In such a three-object system, an object at a Lagrangian point fits this criteria (as might some situations involving eccentric orbits) but the term is generally used regarding systems of many objects such as galactic disks or protoplanetary disks. Corotation resonance is the instigator of corotation torque, just as Lindblad resonance is the instigator of Lindblad torque. Corotation resonance has been considered regarding the dynamics of galaxy bars, which rotate as a unit.

(celestial mechanics,dynamics,orbits,resonance)
Further reading:

Referenced by pages: