galpy.potential.Potential.zforce¶
- Potential.zforce(R, z, phi=0.0, t=0.0)[source]¶
Evaluate the vertical force F_z.
- Parameters:
R (float or Quantity) – Cylindrical Galactocentric radius.
z (float or Quantity) – Vertical height.
phi (float or Quantity, optional) – Azimuth (default: 0.0).
t (float or Quantity, optional) – Time (default: 0.0).
- Returns:
F_z (R,z,phi,t).
- Return type:
float or Quantity
Notes
2010-04-16 - Written - Bovy (NYU)