galpy.potential.evaluateplanarPotentials

galpy.potential.evaluateplanarPotentials(Pot, R, phi=None, t=0.0, dR=0, dphi=0)[source]

Evaluate a (list of) planarPotential instance(s).

Parameters:

  • Pot (planarPotential or list of planarPotential) – A (list of) planarPotential instance(s).

  • R (float or Quantity) – Cylindrical radius.

  • phi (float or Quantity, optional) – Azimuth (default None).

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

  • dR (int, optional) – If set to a non-zero integer, return the dR derivative instead. Default is 0.

  • dphi (int, optional) – If set to a non-zero integer, return the dphi derivative instead. Default is 0.

Returns:

Potential Phi(R(,phi,t)).

Return type:

float or Quantity

Notes

  • 2010-07-13 - Written - Bovy (NYU)