galpy.potential.epifreq¶
- galpy.potential.epifreq(Pot, R, t=0.0)[source]¶
NAME:
epifreq
PURPOSE:
calculate the epicycle frequency at R in the potential Pot
INPUT:
Pot - Potential instance or list thereof
R - Galactocentric radius (can be Quantity)
t - time (optional; can be Quantity)
OUTPUT:
epicycle frequency
HISTORY:
2012-07-25 - Written - Bovy (IAS)