galpy.df.sphericaldf.__call__

sphericaldf.__call__(*args, **kwargs)[source]

Evaluate the DF

Parameters:

*args (tuple) –

Either:

  1. (E,L,Lz): tuple of E and (optionally) L and (optionally) Lz. Each may be Quantity

  2. R,vR,vT,z,vz,phi: cylindrical coordinates (can be Quantity)

  3. Orbit instance: orbit.Orbit instance and if specific time then orbit.Orbit(t)

Returns:

Value of DF

Return type:

ndarray or Quantity

Notes

  • 2020-07-22 - Written - Lane (UofT)

  • 2024-10-29 - Fixed to return mass/phase-space volume units for physical-unit output - Bovy (UofT)