Isochrone potential

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

Class that implements the Isochrone potential

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

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

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




initialize an isochrone potential


amp= amplitude to be applied to the potential, the total mass (default: 1); can be a Quantity with units of mass or Gxmass

b= scale radius of the isochrone potential (can be Quantity)

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.

ro=, vo= distance and velocity scales for translation into internal units (default from configuration file)




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