Spherical Cored Dehnen potential¶

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

Class that implements the Dehnen Spherical Potential from Dehnen (1993) with alpha=0 (corresponding to an inner core)

\[\rho(r) = \frac{\mathrm{amp}}{12\,\pi\,a^3}\,\frac{1}{(1+r/a)^{4}}\]

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

Initialize a cored Dehnen Spherical Potential; note that the amplitude definition used here does NOT match that of Dehnen (1993)

Parameters:

amp (float, optional) – Amplitude to be applied to the potential (default: 1); can be a Quantity with units of mass or Gxmass
a (float or Quantity, optional) – Scale radius.
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 or Quantity, optional) – Distance scale for translation into internal units (default from configuration file).
vo (float or Quantity, optional) – Velocity scale for translation into internal units (default from configuration file).

Notes