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Potential

3D potentials

Specific potentials

In addition to these classes, a Milky-Way-like potential is defined as galpy.potential.MWPotential. This potential is defined as

>>> mp= MiyamotoNagaiPotential(a=0.5,b=0.0375,normalize=.6)
>>> np= NFWPotential(a=4.5,normalize=.35)
>>> hp= HernquistPotential(a=0.6/8,normalize=0.05)
>>> MWPotential= [mp,np,hp]

and can thus be used like any list of Potentials.

2D potentials

General instance routines

Use as Potential-instance.method(...)

General axisymmetric potential instance routines

Use as Potential-instance.method(...)

Specific potentials

All of the 3D potentials above can be used as two-dimensional potentials in the mid-plane.

In addition, a two-dimensional bar potential and a two spiral potentials are included

1D potentials

General instance routines

Use as Potential-instance.method(...)

General 1D potential routines

Use as method(...)

Specific potentials

One-dimensional potentials can also be derived from 3D axisymmetric potentials as the vertical potential at a certain Galactocentric radius