galpy.potential.rl¶
- galpy.potential.rl(Pot, lz, t=0.0)[source]¶
NAME:
rl
PURPOSE:
calculate the radius of a circular orbit of Lz
INPUT:
Pot - Potential instance or list thereof
lz - Angular momentum (can be Quantity)
t - time (optional; can be Quantity)
OUTPUT:
radius
HISTORY:
2012-07-30 - Written - Bovy (IAS@MPIA)
NOTE:
An efficient way to call this function on many objects is provided as the Orbit method rguiding