Anisotropic NFW DF of the Osipkov-Merritt type¶
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class
galpy.df.
osipkovmerrittNFWdf
(pot=None, ra=1.4, rmax=10000.0, ro=None, vo=None)[source]¶ Class that implements the anisotropic spherical NFW DF with radially varying anisotropy of the Osipkov-Merritt type
\[\beta(r) = \frac{1}{1+r_a^2/r^2}\]with \(r_a\) the anistropy radius.
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__init__
(pot=None, ra=1.4, rmax=10000.0, ro=None, vo=None)[source]¶ NAME:
__init__PURPOSE:
Initialize a NFW DF with Osipkov-Merritt anisotropyINPUT:
pot - NFW potential which determines the DF
ra - anisotropy radius (can be a Quantity)
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:
2020-11-12 - Written - Bovy (UofT)
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