galpy.potential.planarPotential.Rforce

planarPotential.Rforce(R, phi=0.0, t=0.0)

Evaluate the radial force.

Parameters:

• R (float or Quantity) – Cylindrical radius.

• phi (float or Quantity, optional) – Azimuth (default 0.0).

• t (float or Quantity, optional) – Time (default 0.0).

Returns:

Cylindrical radial force F_R(R, (phi, t)).

Return type:

float or Quantity

Notes

• 2010-07-13 - Written - Bovy (NYU)