Kuzmin disk potential

class galpy.potential.KuzminDiskPotential(amp=1.0, a=1.0, normalize=False, ro=None, vo=None)[source]

Class that implements the Kuzmin Disk potential

\[\Phi(R,z) = -\frac{\mathrm{amp}}{\sqrt{R^2 + (a + |z|)^2}}\]

with \(\mathrm{amp} = GM\) the total mass.

__init__(amp=1.0, a=1.0, normalize=False, ro=None, vo=None)[source]

Initialize a Kuzmin disk Potential.

Parameters:
  • amp (float or Quantity, optional) – Amplitude to be applied to the potential, the total mass. Can be a Quantity with units of mass or Gxmass.

  • a (float or Quantity, optional) – Scale length.

  • normalize (bool or float, optional) – If True, normalize such that vc(1.,0.)=1., or, if given as a number, such that the force is this fraction of the force necessary to make vc(1.,0.)=1.

  • ro (float, optional) – Distance scale for translation into internal units (default from configuration file).

  • vo (float, optional) – Velocity scale for translation into internal units (default from configuration file).

Notes

  • 2016-05-09 - Written - Aladdin