Double exponential disk potential¶
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class
galpy.potential.
DoubleExponentialDiskPotential
(amp=1.0, hr=0.3333333333333333, hz=0.0625, maxiter=20, tol=0.001, normalize=False, ro=None, vo=None, new=True, kmaxFac=2.0, glorder=10)¶ Class that implements the double exponential disk potential
\[\rho(R,z) = \mathrm{amp}\,\exp\left(-R/h_R-|z|/h_z\right)\]-
__init__
(amp=1.0, hr=0.3333333333333333, hz=0.0625, maxiter=20, tol=0.001, normalize=False, ro=None, vo=None, new=True, kmaxFac=2.0, glorder=10)¶ NAME:
__init__PURPOSE:
initialize a double-exponential disk potentialINPUT:
amp - amplitude to be applied to the potential (default: 1); can be a Quantity with units of mass density or Gxmass density
hr - disk scale-length (can be Quantity)
hz - scale-height (can be Quantity)
tol - relative accuracy of potential-evaluations
maxiter - scipy.integrate keyword
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:
DoubleExponentialDiskPotential objectHISTORY:
2010-04-16 - Written - Bovy (NYU)
2013-01-01 - Re-implemented using faster integration techniques - Bovy (IAS)
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