galpy.potential.tdyn

galpy.potential.tdyn(Pot, R, t=0.0)[source]

NAME:

tdyn

PURPOSE:

calculate the dynamical time from tdyn^2 = 3pi/[G<rho>]

INPUT:

Pot - Potential instance or list thereof

R - Galactocentric radius (can be Quantity)

t= (0.) time (optional; can be Quantity)

OUTPUT:

Dynamical time

HISTORY:

2021-03-18 - Written - Bovy (UofT)