Isotropic NFW DF¶
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class
galpy.df.
isotropicNFWdf
(pot=None, widrow=False, rmax=10000.0, ro=None, vo=None)[source]¶ Class that implements the approximate isotropic spherical NFW DF (either Widrow 2000 or an improved fit by Lane et al. 2021).
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__init__
(pot=None, widrow=False, rmax=10000.0, ro=None, vo=None)[source]¶ NAME:
__init__PURPOSE:
Initialize an isotropic NFW distribution functionINPUT:
pot= (None) NFW Potential instance
widrow= (False) if True, use the approximate form from Widrow (2000), otherwise use improved fit that has <~1e-5 relative density errors
rmax= (1e4) maximum radius to consider (can be Quantity); set to numpy.inf to evaluate NFW w/o cut-off
ro=, vo= galpy unit parameters
OUTPUT:
NoneHISTORY:
2021-02-01 - Written - Bovy (UofT)
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