harmonic_oscillator_to_aa¶
-
gala.dynamics.
harmonic_oscillator_to_aa
(w, potential)[source]¶ Transform the input cartesian position and velocity to action-angle coordinates for the Harmonic Oscillator potential.
This transformation is analytic and can be used as a “toy potential” in the Sanders & Binney (2014) formalism for computing action-angle coordinates in any potential.
Note
This function is included as a method of the
HarmonicOscillatorPotential
and it is recommended to callaction_angle()
instead.Parameters: w :
gala.dynamics.CartesianPhaseSpacePosition
,gala.dynamics.CartesianOrbit
potential : Potential