Anisotropic Hernquist DF of the Osipkov-Merritt type

class galpy.df.osipkovmerrittHernquistdf(pot=None, ra=1.4, ro=None, vo=None)[source]

Class that implements the anisotropic spherical Hernquist 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.

__init__(pot=None, ra=1.4, ro=None, vo=None)[source]

NAME:

__init__

PURPOSE:

Initialize a Hernquist DF with Osipkov-Merritt anisotropy

INPUT:

pot - Hernquist potential which determines the DF

ra - anisotropy radius (can be a Quantity)

ro=, vo= galpy unit parameters

OUTPUT:

None

HISTORY:

2020-11-12 - Written - Bovy (UofT)