galpy.potential.Potential.zforce¶
- Potential.zforce(R, z, phi=0.0, t=0.0)[source]¶
NAME:
zforce
PURPOSE:
evaluate the vertical force F_z (R,z,t)
INPUT:
R - Cylindrical Galactocentric radius (can be Quantity)
z - vertical height (can be Quantity)
phi - azimuth (optional; can be Quantity)
t - time (optional; can be Quantity)
OUTPUT:
F_z (R,z,phi,t)
HISTORY:
2010-04-16 - Written - Bovy (NYU)