Kepler potential¶
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class
galpy.potential.
KeplerPotential
(amp=1.0, normalize=False, ro=None, vo=None)[source]¶ Class that implements the Kepler (point mass) potential
\[\Phi(r) = -\frac{\mathrm{amp}}{r}\]with \(\mathrm{amp} = GM\) the mass.
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__init__
(amp=1.0, normalize=False, ro=None, vo=None)[source]¶ NAME:
__init__PURPOSE:
initialize a Kepler, point-mass potentialINPUT:
amp - amplitude to be applied to the potential, the mass of the point mass (default: 1); can be a Quantity with units of mass density or Gxmass density
alpha - inner power
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)
OUTPUT:
(none)HISTORY:
2010-07-10 - Written - Bovy (NYU)
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