galpy.potential.Potential.phiforce

Potential.phiforce(R, z, phi=0.0, t=0.0)

NAME:

phiforce

PURPOSE:

evaluate the azimuthal force F_phi (R,z,phi,t)

INPUT:

R - Cylindrical Galactocentric radius

z - vertical height

phi - azimuth (rad)

t - time (optional)

OUTPUT:

F_phi (R,z,phi,t)

HISTORY:

2010-07-10 - Written - Bovy (NYU)