galpy.df.quasiisothermaldf.__call__

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

Evaluate the DF

Parameters:

  • args (tuple or Orbit) –

    Either:
    1. (jr,lz,jz) tuple; each can be a Quantity
      where:

      • jr - radial action

      • lz - z-component of angular momentum

      • jz - vertical action

    2. R,vR,vT,z,vz

    3. Orbit instance: initial condition used if that’s it, orbit(t) if there is a time given as well

  • log (bool, optional) – If True, return the natural log.

  • func (function of (jr,lz,jz), optional) – Function of the actions to multiply the DF with (useful for moments).

  • _return_actions (bool, optional) – If True, return the actions as well.

  • _return_freqs (bool, optional) – If True, return the frequencies as well.

  • _return_rgr (bool, optional) – If True, return the rg as well.

  • kwargs (dict, optional) – scipy.integrate.quadrature kwargs.

Returns:

Value of DF.

Return type:

float

Notes

  • 2012-07-25 - Written - Bovy (IAS@MPIA)