Isochrone potential

class galpy.potential.IsochronePotential(amp=1.0, b=1.0, normalize=False)

Class that implements the Isochrone potential

\[\Phi(r) = -\frac{\mathrm{amp}}{b+\sqrt{b^2+r^2}}\]

__init__(amp=1.0, b=1.0, normalize=False)

NAME:

__init__

PURPOSE:

initialize an isochrone potential

INPUT:

amp= amplitude to be applied to the potential (default: 1)

b= scale radius of the isochrone potential

normalize= 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.

OUTPUT:

(none)

HISTORY:

2013-09-08 - Written - Bovy (IAS)