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)