Arbitrary OsipkovMerritt DF¶

class
galpy.df.
osipkovmerrittdf
(pot=None, denspot=None, ra=1.4, rmax=10000.0, scale=None, ro=None, vo=None)[source]¶ Class that implements spherical DFs with OsipkovMerritttype orbital anisotropy
\[\beta(r) = \frac{1}{1+r_a^2/r^2}\]with \(r_a\) the anistropy radius for arbitrary combinations of potential and density profile.

__init__
(pot=None, denspot=None, ra=1.4, rmax=10000.0, scale=None, ro=None, vo=None)[source]¶ NAME:
__init__PURPOSE:
Initialize a DF with OsipkovMerritt anisotropyINPUT:
pot= (None) Potential instance or list thereof
denspot= (None) Potential instance or list thereof that represent the density of the tracers (assumed to be spherical; if None, set equal to pot)
ra  anisotropy radius (can be a Quantity)
rmax= (1e4) maximum radius to consider (can be Quantity); DF is cut off at E = Phi(rmax)
scale  Characteristic scale radius to aid sampling calculations. Optionaland will also be overridden by value from pot if available.
ro=, vo= galpy unit parameters
OUTPUT:
NoneHISTORY:
20210207  Written  Bovy (UofT)
