galpy.potential.epifreq

galpy.potential.epifreq(Pot, R)

NAME:

epifreq

PURPOSE:

calculate the epicycle frequency at R in the potential Pot

INPUT:

Pot - Potential instance or list thereof

R - Galactocentric radius

OUTPUT:

epicycle frequency

HISTORY:

2012-07-25 - Written - Bovy (IAS)